You have just been hired as a book representative for Pearson Education. On your first day, you must travel to seven schools to introduce yourself. How many different routes are possible?

Approach Call the seven schools A, B, C, D, E, F, and G. School A can be visited first, second, third, fourth, fifth, sixth, or seventh. So, there are seven choices for school A. There are six choices for school B, five choices for school C, and so on. Use the Multiplication Rule and the factorial to find the solution.