FeatureShop sells 80 stereos per month at a cost of $600 each. The manager knows that for every $10 price increase there will be one less stereo sold per month. What price will produce the greatest revenue?

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FeatureShop sells 80 stereos per month at a cost of $600 each. The manager knows that for every $10 price increase there will be one less stereo sold per month. What price will produce the greatest revenue?

To quote one of our very good math and science tutors: “You will find here at Jiskha that long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered. We will gladly respond to your future questions in which your thoughts are included.”