A manufacturer has a monthly fixed cost of $120,000 and a production cost of $16 for each unit produced. The product sells for $22 per unit. (a) What is the cost function? C(x) = (b) What is the revenue function? R(X) = (c) What is the profit function? P(x) = (d) Compute the profit or loss corresponding to a production level of 12,000 and 23,000 units. (Input a negative value to indicate a loss.) at 12,000 units $ at 23,000 units $