Question

Melissa is helping her dad build a walkway in their backyard. The walkway will be 54 feet long and 1.5 by 1.5 feet wide. The local hardware store sells tiles which are 1.5 by 1.5 come in boxes of 12

how many boxes do they need

Answer 1

54 dived by 1.5 is 36.
36 dived by 12 is 3.
You need 3 boxes.