Jake Roof Repair has provided the following data concerning costs Fixed Cost per Month Wages and salaries $20,760 Parts and supplies Equipment depreciation $ 2,740 Truck operating $ 5,770 expenses Rent $ 4,670 Administrative $ 3,840 expenses Cost per Repair Hour $15.ee $17.50 $ 0.38 $ 1.80 $ 0.70 For example, wages and salaries should be $20,700 plus $15.00 per repell-hout. The company expected to work 2.800 repatr-hours in May, but actually worked 2,700 repair-hours. The company expects its sales to be 55100 per repair hour Required: Compute the company's activity variances for May (indicate the effect of each variance by selecting for favorable, "U" for unfavorable, and "None" for no effect f.e., zero variance. Input all amounts as positive values.) Jake Roof Repair Activity Variances For the Month Ended May 31 Revenue 137,700 Expenses Wages and salaries Parts and supplies Equipment depreciation Truck operating expenses Rent Administrative expenses Total expense Net operating income