Pls help me 1 pic included... Don't let this go math people!!!

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer