A group of vehicles consists of 7 cars and 6 trucks. Five are chosen randomly to be in the show room at a car dealership. Determine the probability that at least
one of each vehicle is chosen.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?