(Steps Shown) Profitable fruitcakes. Sharon's revenue R (in dollars) on the sale of x fruitcakes is determined by the formula R=50 x-x^2 . Her cost C (in
Question: Profitable fruitcakes. Sharon's revenue \(R\) (in dollars) on the sale of \(x\) fruitcakes is determined by the formula \(R=50 x-x^{2} .\) Her cost \(C\) (in dollars) for producing \(x\) fruitcakes is given by the formula \(C=2 x+40 .\) For what values of \(x\) is Sharon's profit positive? (Profit = revenue - cost.)
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