If he drives 45 miles each hour, then in 'h' hours, he will cover ' 45h ' miles.
The expression for the number of miles George travels in 'h' hours at a speed of 45 mi/h is 45 h miles. This is derived from the distance formula, which states that distance equals speed multiplied by time. Thus, by multiplying the speed of 45 mi/h by the time 'h', we find the distance traveled.
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