Assume that in a perfectly competitive market, a rm's costs and revenues are marginal cost = average variable cost at $20 marginal cost = average total cost at $30 marginal cost = average revenue at $25 a. How will this rm determine the prot maximizing level of output? b. What price will this rm charge? Explain how the rm determined this price. 0. Should this rm produce in the short run? Why or why not? C]. Will this rm earn a prot or incur a loss? Why