What is the length of the shortest side of a triangle that has vertices at (-2, 5), (-2, -7), and (-6, -4)? a.) square root of 7 b.) 9 c.) 5 d.) square root of 5 times 2

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.