The total cost (in dollars) of manufacturing x auto body frames is C(x) = 50,000 + 300x. (A) Find the average cost per unit if 500 frames are produced. [Hint: Recall that C(x) is the average cost per unit] (B) Find the average value of the cost function over the interval [0,500] (C) Discuss the difference between parts (A) and (B). (A) The average cost per unit if 500 frames are produced is $