Assume that the following has a linear cost function Fixed Cost|Marginal Cost per item |Item Sells For $200 $11 $19 Find the following (a) the cost function (b) the revenue function (c) the profit function (d) the profit on 108 items (a) The cost function is C(x) = (Simplify your answer. Do not include the $ symbol in your answer.) (b) The revenue function is R(x) = (Simplify your answer. Do not include the $ symbol in your answer.) (c) The profit function is P(x) = (Simplify your answer. Do not include the $ symbol in your answer.) (d) The profit on 108 items is $ (Simplify your answer.)