There are 294 students in the senior class. Four of the students will be chosen to be the President, Vice-President, Secretary, and Treasurer of the class. How many different ways can this happen?

There are
different ways to choose the officers.

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?