In the expression $a^5$, which part tells how many times the base is used as a factor?

Find the domain of each rational expression. x³ - 1 / x - 1

Multiply or divide, as indicated. 15p³/9p² * 12p/10p³

Perform all indicated operations, and write each answer with positive integer exponents. {x- 9y^-1}/{ (x-3y^-1)(x+3y^-1)}

Multiply or divide as indicated. 55.76 * 72

Simplify the expression using exponent rules.

$\(\left\)(-5a^2\(\right\))\(\left\)(3a^8\(\right\))$

Simplify the expression using exponent rules.

$\frac{-12b^{11}}{4b^7}$

Rewrite the expression using exponent rules.

$\(\left\)(4x^2\(\right\))^3$