Problem 4 A firm's costs are described by the following total cost function, where q is the units of output sold: C(q) = 3:;2 + 100 (a) What are this firm's total fixed costs and total variable costs? (b) What are this firm's average total costs, average fixed costs, and average variable costs? (c) Draw this rm's average fixed cost curve. Place output q on the horizontal axis. (d) What are this rm's marginal costs? Draw this firm's marginal cost curve in the same diagram. e Write this firm's unit cost function. Corn are this to the firm's avera e total costs. Do P g you think this firm produces with constant returns to scale