0. Review of Algebra

Write each decimal as a percent.

$0.4$

Add or subtract as indicated. 28.73 - 3.12

Use set notation, and list all the elements of each set. {x | x is a natural number greater than 8 and less than 15}

Add or subtract as indicated. Write answers in lowest terms as needed. 13/15 - 3/15

Find the intersection of the sets. {a,b,c,d}∩∅

Multiply or divide as indicated. 0.094 × 1000

Perform the indicated operation, and write each answer in lowest terms. (4/x-y) - (9/x-y)

Find each product or quotient where possible. 5/0

Identify the property illustrated in each statement. Assume all variables represent real numbers. 5𝜋 is a real number.

Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, M = {0, 2, 4, 6, 8}, N = {1, 3, 5, 7, 9, 11, 13}, Q = {0, 2, 4, 6, 8, 10, 12}, and R = {0, 1, 2, 3, 4}.Use these sets to find each of the following. Identify any disjoint sets. (R ∪ N) ∩ M′

Insert ⊆ or ⊈ in each blank to make the resulting statement true. {0, 1, 2} ____ {1, 2, 3, 4, 5}

Multiply or divide as indicated. 0.07 × 0.004

Perform the indicated computations. Write the answers in scientific notation. If necessary, round the decimal factor in your scientific notation answer to two decimal places. $(8.4\times {10}^8)/(4\times {10}^5)$

Insert ∈ or ∉ in each blank to make the resulting statement true. 0 _____ {0, 2, 3, 4}