Explain to me how did you get the answer

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Hi my sisters and brothers can tell me the answer because i don’t understand the question

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?