Hartnell College student identification numbers contain 7 digits with repetition.

1. 1. How many possible identification numbers are there?
   2. What is the probability your friend guesses yours?

You plan to visit Japan stopping at Tokyo, Osaka, Kyoto, and Sendai.

1. 1. How many different itineraries are possible?
   2. If one itinerary is chosen at random, what is the probability the cities are visited in alphabetical order

A local business organization has 24 members.

1. 1. How many different ways can the group elect a Rules Committee of 6 individuals?
   2. How many different ways can the group select a president, vice president, and secretary?