The athlete would run 9.6 miles in 1 hour because if you convert 1 hour into minutes you get 60 minutes and if you put it as a proportion 8/50 equals x/60 solve for x and 60 * 8 equals 480 and 480 divided by 50 equals 9.6
this should be easy cause the 64 is bigger, so the parts are smaller. 192 divided by 64 is 3. 192 divided by 12 is 16. multiply, Yada yada… you get 64 is better!