This one did not know who to do because i thought it was right but need

What is the greatest common factor of 8 and 36

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =