Seven books are placed on a book shelf. How many ways can they be ordered?

(1 point)

1

720

5,040

120

1 answer

5,040

This can be calculated by using the formula for permutations of n items, which is n! (n factorial). In this case, there are 7 books, so the number of ways they can be ordered is 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5,040.