In the Putahe Manufacturing Company, at an activity level of 91,000 machine hours, total overhead costs were $230,770.0. this amount, utilities were $42,770 (all variable) and depreciation was $64,000 (all foced). The balance of the overhead cost consisted of maintenance cost (mixed). At 131,000 machine hours, maintenance costs were $156,000. Assume that all of the activity levels mentioned in this problem are within the relevant range. Do not enter dollar sigos or commas in the input boxes: Round all answers to 2 decimal places. a) The variable cost for maintenance per machine hour is: Maintenance cost for 91,000 hours: $ Variable cost for maintenance per machine hour: $ b) The total fixed overhead cost for Putahe Manufacturing is: Depreciation: $ Fixed maintenance cost: Total fixed overhead: c) If 139,000 machine hours of activity are projected for the next period, total expected overhead cost would be: Utilities cost: 5 Variable cost for maintenance per machine hour: b) The total fixed overhead cost for Putahe Manufacturing is: Depreciation: : Fixed maintenance cost: Total fixed overhead: c) If 139,000 machine hours of activity are projected for the next period, total expected overhead cost would be: Utilities cost: $ Maintenance costs (variable): Total fixed overhead: $ Total costs: $