4 Ball Bearings Inc. faces costs of production as follows:

a Calculate the company's average fixed cost, average variable cost, average total cost and marginal cost at each level of production.
b The price of a case of ball bearings is $50. Seeing that he can't make a profit, the chief executive officer (CEO) decides to shut down operations. What is the firm's profit/loss?
Was this a wise decision? Explain.
c Vaguely remembering his introductory economics course, the chief financial officer tells the CEO it is better to produce one case of ball bearings, because marginal revenue equals marginal cost at that quantity. What is the firm's profit/loss at that level of production? Was this the best decision? Explain.