time required for each activity is shown in parenthesis): Activity 1: Welcome a guest and offer homemade herb tea. (40 minutes) Activity 2: Wash and condition hair. (10 minutes) Activity 3: Neck, shoulder, and back stress release massage. (10 minutes) Activity 4: Design the hair style and do the hair. (25 minutes) Activity 5: Check out the guest. (10 minutes) Three servers (S1, S2, and S3 ) offer the services in a worker-paced line. The assignment of tasks to servers is the following: S1 does Activity 1 S2 does Activities 2 and Activity 3. S3 does Activities 4 and Activity 5. Assume a wage rate of $20 per hour. What are the direct labor costs (in $ ) for one guest? (The accuracy should be of two digits after the decimal places.)