the area for the sand box would be calculated as length × width. since the sandbox is square each side is the same length. the side will be half the number of the area.
They would need to by 3 more tickets. 214 divided by 9 = 23 with the remainder of 3. So I divided 217 by 9 = 23. I added 3 to 214 which got a whole answer 23.
