Rooney Computer Services, Inc. has been in business for six months. The following are basic operating data for that period: Service hours Revenue Operating costs Month July Aug Sept. Oct. Nov. Dec. 112 134 258 420 316 332 $6,272 $7,504 $14,448 $23,520 $17.696 $18,592 $4,300 $5,250 $ 7,180 $11,118 $ 9, 130 $10,520 + nces 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 What is the average service revenue per hour in each month and the overall average for the six-month period? Month July Aug Sopt. Oct. Nov. Dec. Total Average Average service revenue per hour Required > Service hours Revenue Operating costs July 112 $6,272 $4,300 Month Aug. Sept. Oct. 134 258 420 $7,504 $14,448 $23,520 $5,250 $ 7,189 $11, 110 Nov. Dec. 316 332 $17,696 $18,592 $ 9, 130 $10,520 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 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 Service hours Revenue Operating costs Month Quly Aug. Sept: Oct. Nov. 112 134 258 420 316 $5,27257,504 $14,448 $23,520 $17,696 $4,300 $5,250 $ 7,180 $11, 110 $9,130 Dec 332 $13,592 $10,520 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 Determine the average contribution margin per hour. (Round your answer to 2 decimal places.) Average contribution margin per hour