Aperfume manufacturer uses 0.875 pounds of rose petals to make each bottle of perfume. how many pounds of rose petals would be needed to make 86 bottles of

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?