Arranging of books is an illustration of permutation and combination
There are 24 different possible arrangements she can make
How to calculate the number of arrangement
The number of books is given as:
n = 4
Take the factorial of both sides
n! = 4!
Evaluate
n! = 4 * 3 * 2 * 1
n! = 24
Hence, there are 24 different possible arrangements she can make
Read more about permutation and combination at:
https://brainly.com/question/1216161
