Someone please help me I got those three red boxes incorrect so many times

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) =

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).