Practice problem
Permutation Notation
A band is touring to promote their new album. This album has songs on it and three singles. If the band wants to open and close their concert with a single, how many possible line ups can the show have?
Practice problem
A band is touring to promote their new album. This album has songs on it and three singles. If the band wants to open and close their concert with a single, how many possible line ups can the show have?