“On a highway, a wreck has occurred and caused a traffic jam 5 miles long on one side of the highway. The average car is 14 feet long, the average truck is 20 feet long, and the average tractor-trailer is 80 feet long0. 70% of the traffic jam is cars, 20% is trucks, and 10% is Tractor trailers. If there are 4 feet between each vehicle, how many vehicles are in the traffic jam?”