09:59 JAW 20. Given the following information of a perfect competitive firm: MR = MC at Q = 15 units, AR = $18, AVC = $8, AFC = $6. The firm's economic profits / loss are: Group of answer choices $270, a profit -$270, a loss -$60, a loss $60, a profit cannot be computed based on information provided 09:59 JAW 21. Using the information as shown in Question 20 above. What is the firm's total profits / loss had the firm decided to shut down? Group of answer choices -$90, a loss none of the answers given is correct -$120, a loss -$60, a loss -$270, a loss