When you see a flashing yellow light at an intersection you should:

keep your speed up as not to disrupt the flow of traffic

only slow down if other vehicles are present

slow down and cross the intersection carefully

stop then enter the intersection when safe to do so

A flashing yellow light represents caution. Its use is to warn the drivers to be careful when approaching the intersection. When in the intersection slow down and cross it carefully. Coming to a complete stop and entering the intersection if clear is what a flashing red light means.

The answer is 225 miles per 4.5 hours. hope this ; )