What is y and what is x using special right triangles to solve

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

2/3(-6y+9x) expand each expression using the distributive property

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?