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Benson Computer Services, Inc. has been in business for six months. The following are basic operating data for that period Month July 114 Aug Sept. Oct. Nov. Dec. Service hours Revenue Operating costs 326 $6,042 $7,208 $13,462 $22,684 $16,748 $17,278 $4,290 $5,250 7,120 $11,150 9,140 $10,590 136 254 428 316 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 ARequired B Required C What is the average service revenue per hour in each month and the overall average for the six-month period? Month July Aug Sept. Oct. Nov Dec Total Average Average service revenue per hour Required A RequiredB >