A ball is thrown straight up to a height of 20 meters and it falls straight down and is caught at the starting point.
A. What is the distance of the ball?
B. What is the displacement of the ball?

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?