Jagjit company designs and builds retaining walls for individual customers. on august 1, there were two jobs in process: job 93 with a beginning balance of $8,650, and job 94 with a beginning balance of $7,270. jagjit applies overhead at the rate of $9 per direct labor hour. direct labor wages average $16 per hour. data on august costs for all jobs are as follows:

"jake’s roof repair has provided the following data concerning its costs: fixed cost per month cost per repair-hour wages and salaries $ 20,900 $ 15.00 parts and supplies $ 7.70 equipment depreciation $ 2,800 $ 0.35 truck operating expenses $ 5,720 $ 1.60 rent $ 4,690 administrative expenses $ 3,850 $ 0.50 for example, wages and salaries should be $20,900 plus $15.00 per repair-hour. the company expected to work 2,600 repair-hours in may, but actually worked 2,500 repair-hours. the company expects its sales to be $47.00 per repair-hour. required: compute the company’s activity variances for may."