Respuesta :

myuuu
Mark could travel 682.5 miles in 7.5 hours.

To solve this you have to find how fast he travels per hour.
455 miles/5 hours=91 mph
91 mph multiplied by 7.5 hours(91 x 7.5)= 682.5
682.5 Miles in 7.5 hours

Hope this helped you! :D