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Jake's Roof Repair has provided the following data concerning its costs: For example, wages and salaries should be $21,000 plus $15.00 per repair-hour. The company expected to work 2,900 repair-hours May, but actually worked 2,800 repair-hours. The company expects its sales to be $48.00 per repair-hour. Required: Compute the compary's activity variances for May, (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfivorable, and "None" for no effect (i.e., zero variance), Input all amounts as positive values.) Jake's Roof Repair has provided the following data concerning its costs: For example, wages and salaries should be $21,000 plus $15.00 per repair-hour. The company expected to work 2,900 repair-hours May, but actually worked 2,800 repair-hours. The company expects its sales to be $48.00 per repair-hour. Required: Compute the compary's activity variances for May, (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfivorable, and "None" for no effect (i.e., zero variance), Input all amounts as positive values.)