What is the length of DE?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

How do i put 3(x+7) in distributive property

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided