* Understanding the Problem: Aquiel wants to choose 4 books out of 10, and the order in which she reads them matters. This means we're dealing with a permutation.
* Permutation Formula: The number of permutations of *n* objects taken *r* at a time is given by:
nPr = n! / (n - r)!
where "!" denotes factorial (e.g., 5! = 5 * 4 * 3 * 2 * 1).
* Applying the Formula:
* n = 10 (total number of books)
* r = 4 (number of books Aquiel chooses)
10P4 = 10! / (10 - 4)!
= 10! / 6!
= 10 * 9 * 8 * 7
= 5040
Answer: There are 5040 ways Aquiel can select 4 books and read them.