Hi there i need someone to help me with this question ASAP PLZ!!! (2 part question)

K-Too Evenvear Corporation can manufacture mountain climbing shoes for $1715 per pair in variable raw material costs and $1526 per pair in variable labor expense. The shoes sell for $132 per paic Last year, production was 140,000 pairs. Fixed costs were 5780,000 a. What were total production costs? \begin{tabular}{|} \hline 55,317,400 \\ $4,537,400 \\ \hline$4,637,400 \\ \hline$5,117,400 \\ \hline \end{tabular} b. What is the marginal cost per pas? c. What is the average cost? c. What is the average cost? d. If the company is considering a one-time order for an extra 12,000 pairs. what is the minimum acceptable total revenue from the order