The Beauty Beyond Words Salon uses an activity-based costing system in its beauty salon to determine the cost of services. The salon has determined the costs of services by activity as follows: Activity Hair washing Conditioning Chemical treatment Styling Activity Rate $4.00 $3.50 $25.00 $10.00 Hair Washing Conditioning Styling Haircut Complete style Perm Highlights 1 Chemical Treatment 0 0 i 2 1 2 3 Aw 1 Calculate the cost of services for a haircut. a. $4.00 b. $3.50 c. $7.50 d. $11.50