For example, wages and salaries should be $21,100 plus $15.00 per repair-hour. The compony expected to work 3.000 repair-hours in May, but actually worked 2,900 repair-hours. The company expects its sales to be $46.00 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 (l.e., zero variance). Input all amounts as positive values.) For example, wages and salaries should be $21,100 plus $15.00 per repair-hour. The compony expected to work 3.000 repair-hours in May, but actually worked 2,900 repair-hours. The company expects its sales to be $46.00 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 (l.e., zero variance). Input all amounts as positive values.)