Leilani rides her skateboard at an average speed of 9 miles per hour. What is Leilani's average skateboard speed in minutes per foot?

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?

17 in long 1.3 ft wide and 8in high what is the volume

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.