Jake's Roof Repair has provided the following data concerning its costs: Fixed Cost per Month $ 21,400 W and salaries Par and supplies Equint depreciation Truck or expenses Rent Administrave expenses Cost per Repair-Hour $15.ee $ 7.20 $ 0.55 $ 1.5e $ 2,700 $ 5,770 $ 4,660 $ 3,850 $ 0.60 For example, wages and salaries should be $21,400 plus $15.00 per repair-hour. The company expected to work 2.900 repair-hours in May, but actually worked 2.800 repair-hours. The company expects its sales to be $49.00 per repair-hour, Required: Compute the company's activity variances for May. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (.e., zero variance). Input all amounts as positive values.) Jake's Roof Rep Activity Variance For the Month Ended Muy 31 Revenue Expenses Wages and salaties Perts and supplies Equipment depreciation Truck operating expenses Rent *****