Leah gets to paint her room since she bought a new bedspread set. two gallons of paint covers 800 square feet. how many gallons of paint will leah need to paint her entire room, which is 1,200 square feet?

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?