Find the values of x and y.   question 2 options: x = 15, y = 17 x = 68, y = 112 x = 112, y = 68 x = 17, y = 15

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.