Jake's Roof Repair has provided the following data concerning its costs: For example, wages and salaries should be $20,700 plus $15.00 per repaif-hour. The compary expected to work 2700 repair hours in May, but actually worked 2,600 repair hours. The company expects its sales to be $45,00 per repair-hout. Required: Compute the company's activity variances for May. (Indicote the effect of each variance by selecting "F" for fovorable, "U" for unfavoroble, ond "None" for no effect (i.e,, tero varionce). Input all omounts as positive volues.) For example, wages and salaries should be $20.700 plus $15.00 per repair-hour. The company expected to work 2700 repair-hours in May, but actually worked 2,600 repair-hours. The company expects its sales to be $45.00 per repair-hour. Required: Compute the company's activity variances for May. (Indicate the effect of eoch variance by selecting "F" for fovoroble, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive volues.)