nancy buys 15 metre of ribbon. Her sister buys 6 metre less ribbon but pays twice as much per metre. Together they pay $66. what is the price per metre of each type of ribbon?​

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?