0. Review of Algebra

Find {16, 18, 21, 50} ∪ {15, 16, 17, 18}.

Round each decimal to the nearest thousandth. (a) 0.8 (line above 8) (b) 0.4 (line above 4) (c) 0.9762 (d) 0.8645

Identify the property illustrated in each statement. Assume all variables represent real numbers. 5(t+3) = (t+3)∙5

Find each sum or difference. -7/3 + 3/4

The reciprocal of 6/2 is 3/1.

Express the distance between the given numbers using absolute value. Then find the distance by evaluating the absolute value expression. 2 and 17

Multiply or divide as indicated. 34.04 × 0.56

Simplify each exponential expression in Exercises 23–64. $(-3x^2{y}^5{)}^2$

Simplify each exponential expression: $(-2x^4{y}^3{)}^3$

Write each number in decimal notation: 7.45*10^(-5)

Let A = {2, 4, 6, 8, 10, 12}, B = {2, 4, 8, 10}, C = {4, 10, 12}, D = {2, 10}, andU = {2, 4, 6, 8, 10, 12, 14}. Determine whether each statement is true or false. A ⊆ U

Write each percent as a fraction. Give answers in lowest terms.

$180\%$

Perform the indicated operation, and write each answer in lowest terms. 2x/5 + x/4

Write each fraction in lowest terms. 16/20