How to solve this i am not the best at math

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Find the area of a parallelogram with base 15 yards and height 21 2/3