0. Review of Algebra

Write each fraction as a percent. 7/50

Write each fraction as a percent. 9/20

Write each fraction as a percent. 2/11

Write each fraction as a percent. 4/9

Write each fraction as a percent. 9/4

Write each fraction as a percent. 8/5

Determine whether each statement is true or false. If false, correct the right side of the equation. (2/3)^-2 = (3/2)^2

Determine whether each statement is true or false. If false, correct the right side of the equation. (3x^2)^-1 = 3x^-2

Simplify each expression. See Example 1. (9^3)(9^5)

Simplify each expression. See Example 1. (4^2)(4^8)

Simplify each expression. See Example 1. (-8t^3)(2t^6)(-5t^4)

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. 4^8/4^6

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. x^12/x^8

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. r^7/r^10

Write each expression without negative exponents, and evaluate if possible. Assume all variables represent nonzero real numbers. See Example 4. (-4)^-3