Please write out rationale I already have my professor key but it is still a little unclear. Please break down the little law equation and the algenra and math. And why the numbers/equation correpsond to the problem. Thank you!

While driving home for the holidays, you note that the average speed of travel is about 60 miles per hour. Moreover, the traffic report from the traffic chopper states that there are an average of 24 cars per mile of the highway. What is the flow rate on the highway in cars per hour