Final answer:
Driving 15-18 mph over the speed limit refers to exceeding the speed limit by 15 to 18 miles per hour.
Step-by-step explanation:
Driving 15-18 mph over the speed limit refers to exceeding the speed limit by 15 to 18 miles per hour. This is generally considered a significant violation of traffic laws and can result in penalties such as fines, license suspension, or even imprisonment depending on the jurisdiction and circumstances. It is important to always obey speed limits for the safety of yourself and others on the road.