The shoulders contain what percentage of the bones in a typical human body? Give your answer as a percent rounded to the nearest tenth. How could you use your answer to estimate the percentage of leg bones in a typical human body

Ineed in figuring out this problem.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20