While driving back to school for the Spring semester, you can't seem to get Little's Law out of your mind. You note that your average speed of travel is about $60$ miles per hour Moreover, the traffic report from the WTAW radio station says that there is an average of $24$ cars going in your direction on a $1-$quarter mile part of the highway. What is the flow rate of the highway $($going in your direction$)$ in cars per hour?