Alice uses a mower to cut her rectangular 80-foot by 120-foot lawn. The swath she cuts is 28 inches wide, but she overlaps each cut by 4 inches to make sure that no grass is missed. She walks at the rate of 4800 feet per hour while pushing the mower. Which of the following is closest to the number of hours it will take Alice to mow the lawn?
0.8
1.0
1.2
1.5
1.8