Pls answer smartly or u will be reported :)

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) =

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12