Colin's back yard is 720ft.In his estimation, the fallen leaves that covered his backyard is 2/3 of his yard.

(Answer:480ft right)
Colin measured the volume of fallen leaves in a 1ft by 1ft section of his back yard to be 432 in3. If leaves fell uniformly over 2/3 of Colin's back yard, how many cubic feet of fallen leaves cover Colin's backyard?