Answer the following two questions. (Show all work. Just the answer, without supporting work, will receive no credit).
(a) Mimi has seven books from the Statistics is Fun series. She plans on bringing three of the seven books with her in a road trip. How many different ways can the three books be selected?
(b) UMUC Stat Club must appoint a president, a vice president, and a treasurer. There are 8 qualified candidates. How many different ways can the officers be appointed?