Arectangular photograph is mounted on a square piece of cardboard whose sides have length x. the boarder that surrounds the photo is 3 inches on each side and 4 inches on the top and bottom.

what is an equation that represents the area?

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?