Suppose that the marginal revenue for firefighting protective clothes is MR = 626 - 6x and the marginal cost is MC = 3.5x + 18 with a fixed cost of $285. Assume R(0) = 0. a) How many units will result in a maximum profit? x = b) Find the revenue function. R(x) = c) Find the cost function. C(x) = =

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