Which is a translation of "two times the difference of a number and 7"

What is a graph with a never ending line called?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

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