A coach makes cookies on the weekend to sell at a school fundraiser. Past experience shows that at price of $1.00 per cookie, 200 cookies will be sold. It is also known that for every $0.19 increase in the price of a cookie, 3 less cookies will be sold. What price should be set for a cookie so that the revenue from cookie sales will be maximized?

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A: Given:

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A:

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A:

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A: Explanation of the answer is as follows

Q: find x  0.007x + 0.28 = 0.7

A: Given , 0.007x + 0.28 = 0.7 we have to find value of x.