K-Too Everwear Corporation can manufacture mountain climbing shoes for $19 per pair in variable raw material costs and $19.64 per pair in variable labor expense. The shoes sell for $127 per pair. Last year, production was 120,000 pairs. Fixed costs were $850,000. a. What were total production costs? b. What is the marginal cost per pair? c. What is the average cost? d. If the company is considering a one-time order for an extra 13,000 pairs, what is the minimum acceptable total revenue from the order