Find the missing side lengths

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

In a grapefruit eating contest, sal ate 5 1/3 grapefruits in 2 minutes. if the world record is 7 1/6 grapefruits in 3 minutes, how many grapefruits would sal have had to eat in the next minute to tie the record

Describe the symmetry of the plane figure shown below. a.horizontal line symmetry b.vertical line symmetry c.rotational symmetryd.diagonal line symmetry