Plzz how do i find the area w just the base

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.

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Which expression shows the sum of the polynomials with like terms grouped together