Could someone me on this i don't understand it. i also unclouded the steps on how to do the problems below.⬇️

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Question 4 of 10 2 points what is the second part of the process of investigating a question using data? a. rephrasing the question o b. describing the data c. collecting the data o d. making an inference submit

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.