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Prowse Corporation is an oil well service company that measures its output by the number of wells serviced. The company has provided purposes. Fixed Element Variable Element per Month per Well Serviced Revenue $ 4,000 Employee salaries and wages $ 43,800 $ 1,000 Servicing materials $ Other expenses $ 38,200 A total of 42 wells were actually serviced during October The total expenses in the flexible budget for October would have been closest to: O $141,200 600 $147,600 $130,029 $149,200