An airplane is 1440 ft above a buoy in the ocean. The buoy is 1.5 miles away from the mainland. What is the diagonal distance in miles between the airplane and the land in miles? (1 mile = 5280 feet). Round to the nearest hundredth. Watch your units.

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?