While watching a football game ,lin chow decided to list yardage gained as a positive integers and yardage lost as negative integers. after these plays, lin recorded 14,-7 and 9.

Volume is length times width times height so
20 times 8 times 30 which is 4,800
surface area is ph (p is perimeter of base), h is height.
so perimeter would be length+length+width+width so 20+20+8+8 which is 56. so multiply 56 times 30 which is 1680. hope this !