2. Will the Science Club meet their goal if they sell 30 T-shirts and 90 key chains? Explain in
terms of the graph of the inequality

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.