Who can help real quick I’m not good 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) =

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.