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For example, wages and salaries should be $21,000 plus $16.00 per repair-hour. The company expected to work 2,700 repair-hours in May, but actually worked 2,600 repair-hours. The company expects its sales to be $52.00 per repair-hour: Required: Note: Indicate the effect of each variance by selecting " F " for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero Compute the company's activity variances for May. variance). Input all amounts as positive values