Tom knows that 10 out of every 85 students in his school are left-handed. There are 595 students in Tom's school. How many are left-handed?

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?