(Answered) : Three Hairstylists Bill Edward Susan Run Fast Service Hair Salon Busy Professionals Yaleto Q36080262

Three hairstylists, Bill, Edward and Susan, run Fast Service Hair Salon for busy professionals in the Yaletown area of downtown Vancouver. They stay open from 6:45am to 9:00pm in order to accommodate as many people’s work schedules as possible. They perform only shampooing and hairstyling activities. On average, it takes 10 minutes to shampoo, 18 minutes to style the hair, and 2 minutes to bill the customer. When a customer arrives, (s)he first checks in with the receptionist