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

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. 4⁸/4⁶

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. x¹²/x⁸

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. r⁷/r¹⁰

Simplify each expression. Write answers without negative exponents. Assume all variables represent nonzero real numbers. (5x)^-2(5x³)^-3/(5^-2x^-3)^-3

Determine whether each statement is true or false. If false, correct the right side of the equation. 5^-2 = 1/5²

Perform the indicated operation, and write each answer in lowest terms. 2x/5 ∙ 10/x²

Perform the indicated operation, and write each answer in lowest terms. y³/8 ÷ y/4