2 Jake's Roof Repair provided the following data concerning its costs: Fixed Cost Cost per per Month Repair-Hour Wages and salaries $ 20,700 $ 15.00 Parts and supplies $ 7.60 Equipment depreciation $ 2,730 $ 0.40 10 Truck operating expenses $ 5,740 $ 1.80 points Rent $ 4,680 $ 3,850 $ 0.70 Administrative expenses For example, wages and salaries should be $20,700 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. Note: Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values. Revenue Expenses: Jake's Roof Repair Activity Variances For the Month Ended May 31 Wages and salaries Parts and supplies Equipment depreciation Truck operating expenses Rent Administrative expenses Total expenses Net operating income