Custom Office makes a line of executive desks. It is estimated that the total cost for making x units of their Senior Executive model is represented by the following function, where C(x) is measured in dollars/year. C(x) = 95x + 180000 (a) Find the average cost function C. C(x) = (b) Find the marginal average cost function ! C'(x) = (c) What happens to C(x) when x is very large? lim =C(x) Interpret your results. This value is what the average cost per unit approaches if the production level is very high. This value is what the production level approaches if the average cost per unit is very low. This value is what the production level approaches if the average cost per unit is very high. This value is what the average cost per unit approaches if the production level is very low