8. A doctor allows 15 minutes for routine office visits and 45 minutes for full physicals. The doctor cannot do
more than 10 physicals per day. She schedules at least 8 routine visits per day but not more than 12 routine
visits. The doctor has 9 available hours for appointments each day. A routine visit costs $60 and a full physical
costs $70. How many routine office visits and full physicals should the doctor schedule to maximize her
income for the day? What is the maximum income?
