MinnOil performs oil changes and other minor maintenance services (e.g., tire pressure checks) for cars. The company advertises that all services are completed within 15 minutes for each service. On a recent Saturday, 160 cars were serviced resulting in the following labor variances: rate, $19 unfavorable; efficiency, $14 favorable. If MinnOil's standard labor rate is $7 per hour, determine the actual wage rate per hour and the actual hours worked. Wage Rate Hours Worked. O $7.50---38.00 $7.45---42.00 $6.55---42.00 O $6.67-42.71