Complete the segment addition postulate for the following segment

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?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?