What is the cube root of 64

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.

What point is the projection of q on a) r b) s c) t

Determine if the equation defines y as a function of x: 2xy = 1. yes o no