Answer:
2 5/8 hours
Explanation:
Distance = 5 1/4 = 21 / 4 miles
Miles per hour = 2 miles per hour
Miles per hour = Distance / Time
Time = Distance / Miles per hour
Time = (21 / 4) miles / 2 miles per hour = 2.625 hours
or 2 hours 37 minutes and 30 seconds
or 2 5/8 hours