The cost formula for the maintenance department of Rambo Limited is $19,200 per month plus $7.90 per machine hour used by the production department. Required: a. Calculate the maintenance cost that would be budgeted for a month in which 6.500 machine hours are planned to be used. b. Prepare an approprlate performance report for the maintenance department assuming that 7,060 mach hours would be used in the month of May and that the total actual maintenance cost incurred in May wa $68,980. Complete this question by entering your answers in the tabs below. Calculate the maintenance cost that would be budgeted for a month in which 6.500 machine hours are planned Exercise 15-9 (Algo) Flexible budgeting LO 15-3 The cost formula for the maintenance department of Rambo Limited is $19.200 per month plus $7.90 per machine hou used by the production department. Required: o. Calculate the maintenance cost that would be budgeted for a month in which 6,500 machine hours are planned to b used. b. Prepare an appropriate performance report for the maintenance department assuming that 7.060 machine hours wo be used in the month of May and that the total actual maintenance cost incurred in May was $68,980. Complete this question by entering your answers in the tabs below. Prepare an appropriate performance report for the maintenance department assuming that 7,060 machine hours would be used in the month of May and that the total actual maintenance cost incurred in May was $68,980. Note: Indicate the effect of each variance by selecting "F" for favorable, " U " for unfavorable, and "None" for no effect (li.e, zero variance)