1. write a variable expression for the word phrase "the quotient of eight and a number" 8 - z 8 + z 8 z 8 ÷ z 2. simplify. x^5 x^3 x² x^8 x^15 x^-2

1. The phrase "the quotient of 8 and a number" means "8 divided by a number." If the number is represented by "z", then it means "8 divided by z", or
  8 ÷ z

2. (x^5)/(x^3) = x^(5-3) = x^2, or x²

The answer would be (c)