Given data:
The given distance is d=165 miles.
The given time is t= 3 hours.
The expression for the speed is,
[tex]\begin{gathered} s=\frac{d}{t} \\ =\frac{165\text{ miles}}{3\text{ hours}} \\ =55\text{ miles/hour} \end{gathered}[/tex]
Thus, Harold drive at 55 miles/hour.
