Profit Function Suppose that the revenue R, in dollars, from selling x cell phones, in hundreds, is R (x) = – 1.2x2 + 220x. The cost C, in dollars, of selling x cell phones, in hundreds, is C (x) = 0.05x3 − 2x2 + 65x + 500.
(a) Find the profit function, P(x) = R (x) - C (x).
(b) Find the profit if x = 15 hundred cell phones are sold.
(c) Interpret P(15).
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