0. Review of Algebra

Write each fraction as a percent.

$\frac{9}{20}$

Write each fraction as a percent.

$\frac{2}{11}$

Write each fraction as a percent.

$\frac{4}{9}$

Write each fraction as a percent.

$\frac{9}{4}$

Write each fraction as a percent.

$\frac{8}{5}$

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. (3x²)^-1 = 3x^-2

Simplify each expression. See Example 1. (9³)(9⁵)

Simplify each expression. See Example 1. (4²)(4⁸)

Simplify each expression. See Example 1. (-8t³)(2t⁶)(-5t⁴)

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. 4⁸/4⁶

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. x¹²/x⁸

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. r⁷/r¹⁰

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

Simplify each expression. Write answers without negative exponents. Assume all vari-ables represent nonzero real numbers. See Examples 5 and 6. (5x)^-2(5x³)^-3/(5^-2x^-3)^-3