Dae 7E Counting and Probability 1-18: Answer the following questions using the appropriate counting technique, which may be either arrangements with repetition, permutations, or combinations. Be sure to explain why this counting technique applies to the problem.

5. How many ways can the eight performances at a piano recital be ordered?

6. A city council with ten members must appoint a four-person subcommittee. How many subcommittees are possible?