Mr. K's is a very popular hair salon. It offers high-quality hair-styling and physical relaxation services at a reasonable price, so it has unlimited demand. The service process includes 5 activities that are conducted in the sequence described below. (The time required for each activity is shown in parenthesis).

Activity 1: Welcome a guest and offer homemade herb tea. (10 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. (15 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 3

S3 does Activities 4 and 5.

Assume a wage rate of $25 per hour. What are the direct labor costs (in $) for one guest? ( The accuracy should be of two digits after the decimal place).