How can I do this? I am not asking for answers, but for the way to do it. I’m struggling, and It would mean so much! Thanks!

What is the difference between the equations of a vertical and a horizontal line?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction