Please answer the above question correctly while showing detailed working.

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

What is the area of the trapezoid shown ?

Combine the information in the problem and the chart using the average balance method to solve the problem.