Bill runs the company that cupcakes. If x is the number of cupckaes prodcued in hundreds, then his revenue and cost equations are R(x) = -X2 + 20x and C(x) = 4x + 50 with both R(x) and C(x) in thousandths. How many cupcakes must Bill produce in order to maximize his profit ? 800 80 8000 8

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