Question 25 (1 point) A lab provides ultrasound service to patients. The service process consists of two steps: 1. Registration. Performed by a receptionist (Salary rate = $25/hr; Process time = 6 minutes/patient) 2. Ultrasound scan. Performed by a technician (Salary rate = $35/hr; Process time = 20 minutes/patient) Note that the ultrasound images need to be read by a radiologist, but we assume that she has ample capacity and thus will not model the role in the service process. Currently, the lab has 2 receptionists and 2 technician. The manager anticipates demand to grow to 14 patients/hr in the near future. Thus, he plans to hire more receptionists and/or technicians to increase the service capacity to at least 14 patients/hr. What would be the extra payroll cost (in dollars per hr)?