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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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Secant be and cf intersect at point d inside a what is the measure of cde