Check my work mode : This shows what is correct or incorrect for the work you have completed so fa 2 Exercise 10-5 Working Backwards from Labor Variances [LO10-2] The auto repair shop of Quality Motor Company uses standards to control the labor time and labor cost in the shop. The standard labor cost for a motor tune-up is given below points Standar Rate Standard Cost Job Motor tune- Standar Hours 2.5 $9.00 $22.50 up The record showing the time spent in the shop last week on motor tune-ups has been misplaced. However, the shop supervisor recalls that 50 tune-ups were completed during the week, and the controller recalls the following variance data relating to tune ups: Labor rate variance $87 F Labor spending variance $93 U Required: 1. Determine the number of actual labor-hours spent on tune-ups during the week