her the end of the Campaigh. ng Campaign, we a. Write the equation of the exponential function that models the weekly sales. p. Find the sales 7 weeks after the end of the advertising campaign. Sale decreased by a. What is the equation for the retail price? y = 21,000(0.90)* y = 21,000(11)* y = 21,000(1.10)* p. Find the sales 7 weeks after the end of the advertising campaign. Do not round until the final answer. Then round to the nearest dollar as needed.)

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