Answer:
102.4
Explanation:
He drove for 2 hours at 51.2 miles per hour, it wants you to find how many miles per hour did he drive, so every hour he drives just add another 51.2 . So if he only drove for 2 hours you add up 51.2 + 51.2 which = 102.4
Speed per hour = 51.2 miles
Distance in 2 hours = 51.2 x 2 = 102.4miles
He drove 102.4 miles
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