Question 322601
You need to rewrite these as formulas and then you can solve them:
Traveling 50 mph how long would it take to travel 550 miles 
50*H = 550 (where H = the number of hours)
H = 11 hours

traveling 60 mph how long would it take to travel 660 miles
60*H = 660
H = 11 hours

traveling 80 mph how long would it take to travel 320 miles
80*H = 320
H = 4 hours