Assume that the following has a linear cost function. Find the following. (a) the cost function (b) the revenue function (c) the profit function (d) the profit on 103 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 103 items is \$ (Simplify your answer.)