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: Job Standard Hours 2.60 Motor tune- up Standard Rate $4.00 Standard Cost $10.40 The record showing the time spent in the shop last week on motor tune-ups has been misplaced. However, the shop supervisor recalls that 180 tune-ups were completed during the week, and the controller recalls the following variance data relating to tune- ups Laborrate variance $630 U Labor spending variance $558 U Required: 1 Determine the number of actual labor-hours spent on tune-ups during the week w