Me i'm desperate!

solve v=(1/3)(pi)h^2(3r-h) for r.

(if you want to see the question better, look at the picture)

also, explain how to solve it. (and if you could provide a visual, that would be great.)

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

Abcd is a square. what is the measure of angle bac

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total