Jamie can read at a speed of 65 pages per hour. If she reads a novel that has 400 pages, how long will it take her to finish her reading? 6 hours
6 hours and 10 minutes
6 hours and 20 minutes
6 hours and 30 minutes

Let r(t) represent the rate, in square feet per minute, at which a groundskeeper is mowing a lawn t minutes after 3 p.m. what expression represents the area, in square feet, of the lawn that is mowed between 3 p.m. and 5 p.m.?