Fixed cost per Month $ 21,388 Jake's Roof Repair has provided the following data concerning its costs: Cost per Repair-Hour Wages and salaries $ 15.ee Parts and supplies $ 7.30 Equipment depreciation $ 2,740 $8.50 Truck operating expenses $ 5,790 $ 1.60 Rent $ 4,630 Administrative expenses $ 3,850 $8.50 For example, wages and salarles should be $21,300 plus $15.00 per repair-hour. The company expected to work 2,700 repair-hours in May, but actually worked 2,600 repair-hours. The company expects its sales to be $53.00 per repair-hour. Required: Compute the company's activity varlances for May. (Indicate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (l.e., zero varlance). Input all amounts as positive values.) Jake's Roof Repair Activity Variances For the Month Ended May 31 Revenue Expenses: Wages and salaries Parts and supplies Equipment depreciation Truck operating expenses Rent Administrative expenses Total expense Net operating income