Which of the following can be used to evaluate the series 8 sigma k-1 5(2/3)k-1?

What is the value of x in the following equation. -x ^3/2 = -27

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

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