Thornton Car Wash, Inc. expected to wash 1,000 cars during the month of August. Washing each car was expected to require 0.2 hour of labor. The company actually used 215 hours of labor to wash 940 cars. The labor usage variance was $540 unfavorable. Required a. Determine the standard labor price. b. If the actual labor rate is $13, indicate whether the labor price variance would be favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e., zero variance).) a. Standard labor price b. Total labor price variance