The answer is d.
First you have to divide 160/ 1/4. So you would do 160/1 divided by 1/4. Because of keep, change and flip. (k.c.f) you would keep 160/1, change the division sign, then flip 1/4 to 4/1. Then you multiply 160/1*4/1. Then you would get 640. Hope this helped.
They will need 60 bags o sand because the new area is 13.5 feet by 18 feet.
Just multiply everything by 1.5.
The answer to the question is (0,5)
I think the best answer would be answer D
