Munoz Computer Services, Inc. has been in business for six months. The following are basic operating data for that period: Service hours Revenue Operating costs July 120 $6,000 $4,220 Aug. 136 $6,800 $5,270 Month Sept. Oct. 258 422 $12,900 $21,100 $ 7,110 $11,130 Nov. 316 $15,800 $ 9,170 Dec. 332 $16,600 $10,590 Required a. What is the average service revenue per hour in each month and the overall average for the six-month period? b. Use the high-low method to estimate the total monthly fixed cost and the variable cost per hour. c. Determine the average contribution margin per hour. Complete this question by entering your answers in the tabs below. Required A Required B Required C What is the average service revenue per hour in each month and the overall average for the six-month period? July Aug. Sept. Oct Nov Dec. Month Average service revenue per hour Total Average $ Required A Required B Required C Use the high-low method to estimate the total monthly fixed cost and the variable cost per hour. (Do not round intermediate calculations. Round "Variable cost" to 2 decimal places and "Fixed cost" to nearest whole dollar.) per hour Variable cost Fixed cost per month Required A Required B Required C Determine the average contribution margin per hour. (Round your answer to 2 decimal places.) Average contribution margin per hour