Need help with chemical reactions, molecular structures, or exam prep? Get clear, step-by-step guidance to build confidence and succeed in chemistry.

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Jules

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Patrick

Struggling with evolution, ecosystems, or the human body? Master key biology concepts with clear explanations that make learning easier.

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Jason

Confused by balance sheets, income statements, or debits and credits? Get accounting concepts broken down step-by-step to build confidence for assignments and exams.

Financial Accounting

Brian

From memory and learning to personality and behavior, explore key psychology concepts and theories in a way that makes class discussions, labs, and tests easier.

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Hannah

Need help with supply and demand, market structures, or elasticity? Complex ideas in microeconomics become clear with guided explanations and examples.

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Struggling with the skeletal system, organ functions, or body processes? Connect the dots across anatomy and physiology to master the material with confidence.

Anatomy & Physiology

Bruce

Having trouble with equations, functions, or graphing? Algebra concepts are explained clearly to help solve problems faster and prepare for quizzes and exams.

College Algebra

Lost in reaction mechanisms, functional groups, or synthesis problems? Organic chemistry becomes manageable through step-by-step guidance and practice.

Organic Chemistry

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From Punnett squares to gene expression and DNA replication, genetics concepts are explained clearly to make problem solving more straightforward.

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Kylia

Balancing general, organic, and biochemistry in one course can be tough. Key concepts are connected across all three areas to help everything make sense together.

GOB Chemistry

New to chemistry? Atoms, elements, and reactions are broken down into simple steps to build a strong foundation for success in class and labs.

Introduction to Chemistry

Struggling with bacteria, viruses, or lab techniques? Microbiology concepts are simplified to keep studying efficient and exam prep on track.

Microbiology

From membranes and organelles to signaling pathways, cell biology is explained clearly to connect structure and function with ease.

Cell Biology

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Angles, identities, and trig functions giving you trouble? Trigonometry is explained step-by-step so solving problems feels more approachable.

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Need a solid foundation before calculus? Precalculus concepts like functions, sequences, and limits are clarified to prepare you for success.

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Nick

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Business Calculus

From probability to hypothesis testing, statistics concepts are explained step-by-step to build problem-solving skills and exam readiness.

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Struggling with data analysis, probability, or regression? Statistics is connected to real-world business decisions to make concepts easier to apply.

Statistics for Business

From proteins and enzymes to metabolism and pathways, biochemistry concepts are connected across chemistry and biology for deeper understanding.

Biochemistry

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Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

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From macronutrients and vitamins to metabolism and diet planning, nutrition concepts are explained clearly and connected to real-life examples.

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Learn how medical terms are built and what they mean by breaking them into simple parts. This course helps you understand and use the language of healthcare with confidence.

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Learn the toughest concepts covered in Beginning Algebra with step-by-step video tutorials and practice problems by world-class tutors 

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Beginning & Intermediate Algebra

Confused by cells, genetics, or how life works? Explore the building blocks of biology with simple, engaging explanations that turn complex science into concepts you'll actually understand.

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Algebra and Trigonometry

From logic and problem solving to voting systems, personal finance, and statistics, liberal arts math topics are explained step-by-step to build confidence with real-world mathematical thinking and strong preparation for quizzes and exams.

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Learn the type of accounting that focuses on providing financial information to internal stakeholders within an organization

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From whole numbers and integers to equations and graphing, develop a strong understanding of foundational math concepts with clear, step-by-step support every step of the way.

Prealgebra

Master the fundamentals of algebra as you solve equations, analyze patterns, and work with mathematical relationships through guided, step-by-step instruction.

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In this Python course you will learn how to : think like a programmer, solve mini practice problems in Python and build three small games. 
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In this Introduction to Microsoft Power BI course, you will learn how to : import and transform data in Power Query Editor , build a data model that supports self-service analysis and develop reports and visualizations using the Power BI Desktop. 

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In this Data Analysis Fundamentals with Excel course you will learn end-to-end solution for collecting, cleaning, importing, managing, and sharing data for operational and reporting purposes using Excel.

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In this course you will learn what blockchain and cryptocurrency are, how they work, and how these technologies are being applied. The course explains what smart contracts are and how they work, the rise of new funding mechanisms.

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In this course expert developer Lee Donahoe and renowned instructor Michael Hartl teach the specific concepts, skills, and approaches in HTML, CSS and Layouts you need to get the job done.

HTML, CSS and Layout

In this course you will learn the basics of JavaScript : write programs, publish packages, and develop interactive websites with JavaScript. Instructor Michael Hartl teaches the concepts, skills, and approaches you need to know.


Introduction to JavaScript

In this R Programming course you will learn the most important parts of R - the statistical programming language, from the very basics to complex modeling. 

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In this course you will learn how to understand marketing analytics beyond advertising. You will learn how to reason about numbers and what questions you should ask analytics experts. 

Digital Marketing Analytics

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In this course you will learn what AI can do in the marketing world, how to recognize when it will work, what the process is to implement it, and who you need to work with to succeed.

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Solve −3≤∣2x+1∣−4<5-3 ≤ |2x + 1| - 4 < 5 and give the solution in interval notation.

Solve $- 3 \leq ∣ 2 x + 1 ∣ - 4 < 5$ and give the solution in interval notation.