Price-Demand Equation At YasterMart, people are willing to buy a pounds of chocolate candy per day at $p dollars b per quarter pound, as given by the price-demand equation =a +, where a = 12 and Р b = 190. Find the instantaneous rate of change of demand with respect to price when the price is $5.21. Round to the nearest hundredth (2 decimal places) pounds per dollar

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