The triangle shown is an equilateral triangle. Write an addition equation and a multiplication equation to show how to find the perimeter, p, of the triangle when s is the measure of one side.

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?