To find how many miles Roger travels in one hour, we need to divide the total distance he traveled by the time he took:
miles per hour = total miles ÷ total time
In this case, Roger traveled 440 miles in 8 hours, so:
miles per hour = 440 miles ÷ 8 hours
miles per hour = 55 miles per hour
Therefore, Roger travels 55 miles in one hour.