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The Profit (In Dollars) from Selling X Units of Calculus p=0.05x2+20x1000p = - 0.05 x ^ { 2 } + 20 x - 1000

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The profit (in dollars) from selling x units of calculus textbooks is given by p=0.05x2+20x1000p = - 0.05 x ^ { 2 } + 20 x - 1000 . Find the marginal profit when x=149x = 149 . Round your answer to two decimal places.


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