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The marginal price for a weekly demand of x bottles of shampoo in a drugstore is...

The marginal price for a weekly demand of x bottles of shampoo in a drugstore is given by the function shown below. Find the​ price-demand equation if the weekly demand is 150 when the price of the bottle of shampoo is $8. What is the weekly demand when the price is $7.50?

p′(x)=−9,000/(3x+50)^2

Find the​ price-demand equation

Find the weekly demand when the price is ​$7.50

Math   Calculus   
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