Brief Exercise 5-19 [LO 5-3) Williams Performance Co. manufactures sports cars. After making a sale, the salesperson sends the car to be detailed before the customer takes it home. Detailing the car takes 45 minutes at a cost of $19 per hour for direct labor and $5 per car for materials. If the average salesperson sells seven cars per day, what is the average cost per 5-day week for detailing cars? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Average cost per week