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Jake's Roof Repair has provided the following data concerning its costs Wages and salaries Parts and supplies Equipment depreciation Truck operating expenses Administrative expenses For example, wages and salaries should be $20.900 plus $1500 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 $53.00 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 (i.e., zero variance). Input all amounts as positive values.) Jake's Roof Repair Activity Variances For the Month Ended May 31 Ravenue Expenses Wapes and salaries Parts and supplie Equipment depreciation Truck operating expenses I Rant Administrative enenses Na aparating income