Jake's Roof Repair provided the following data concerning its costs: For example, wages and salaries should be $20,500 plus $15.00 per repair-hour. The company expected to work 2.600 repair-hours in May but actually worked 2,500 repair-hours. The company expects its sales to be $50.00 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 unfovorable, and "None" for no effect (i.e, zero vorionce). Input all amounts os positive values. Required: Compute the company's actlvity variances for May. Note: Indicate the effect of each variance by selecting "F" for fovorable, "U" for unfavorable, and "None" for no effect (i.e., zero varionce). Input all amounts as positive values