2. Computing Average Costs - CU Eyswear Inc. can manufacture sunglasses for $28.50 per pair in raw material costs and $18.85 per pair in variable labor expense. The glasses sell for $155.00 per pair. Last year productions were 140,000 pairs. Fixed costs were $1,225,000. a. What was total production costs? b. What is the marginal costs per pair? C. What is the average costs? d. if the company is considering a one-time order for an extra 5,000 pairs, What is the minimum'accepted total revenue from the order