Assume that the following has a linear cost function. Find the cost? function, C(x), revenue? function, R(x), and profit? function, P(x), where x is the number of items produced? (or sold).

Assume that the following has a linear cost function. Find the cost function, C(x), revenue function, R(x), and prot function, P(x), where x is the number of items produced (or sold). Fixed Cost Marginal Cost Item Sells for $250 $21 $30 What is the cost function? C(x) = (Simplify your answer. Do not include the $ symbol in your answer.) What is the revenue function? R(x) = (Simplify your answer. Do not include the $ symbol in your answer.) What is the prot function? P(x) = (Simplify your answer. Do not include the $ symbol in your answer.)