Suppose the total cost (TC) of producing 10 000 tennis balls is $30 000 and the fixed cost (FC) is $10 000.

Required

(a) What is the variable cost (VC)?

(b) When output is 10 000, what are the average variable cost (AVC) and the average fixed cost (AFC)?

(c) Assuming that the cost curves have the usual shape, is the dollar difference between the average total cost (ATC) and the average variable cost (AVC) greater when the output is 10 000 tennis balls or when the output is 30 000 tennis balls? Explain.