please clarify why I got wrong answer on e part.

Glenn Dental Clinic provides general dental care to residents of Philadelphia on a walk-in basis. The clinic has started receiving complaints from patients that the waiting time is too long and has asked you to investigate whether this problem can be solved. Upon arrival, customers receive a form from the receptionist and fill out relevant information such as personal health records and insurance provider. The form is then handed back to the receptionist who enters the information into the computer system for the dentist to see. A dental assistant then takes an X-ray from the patient. A dentist then performs the checkup and discusses any issues with the patient. Based on conversations with staff members at the clinic, you have obtained the following information on the process: - It takes about 5 minutes for a customer to fill out the paperwork. - Entry of information on the paperwork into the system and verification with past records takes another 3 minutes for a receptionist. There are two receptionists. - It takes 20 minutes, on average, for the dental assistant to take an X-ray. There are five dental assistants on shift at any moment. - There are 10 dentists working at the clinic. Each checkup takes 35 minutes, on average. The following table summarizes the process data collected above. This clinic has essentially unlimited demand. The dentists get paid $100 per hour while the receptionists and dental assistants get paid $25 per hour. Round your answer to nearest whole number. a. What is the labor content? minutes per patient Round your answer to 2 decimal places. b. What is the cost of direct labor? per patient Enter your answer as a decimal (not percentage) rounded to 2 decimal places. What is the labor utilization of the c. Receptionists? Enter your answer as a decimal (not percentage) rounded to 2 decimal places. d. What is the labor utilization of the Dental assistants? Enter your answer as a decimal (not percentage) rounded to 2 decimal places. e. What is the average labor utilization of the clinic