Using the arrangement formula, it is found that there are
possible seating arrangements.
The number of possible arrangements of n elements is given by the <em>arrangement formula</em>, as follows:

- It is used when n elements are arranged in n positions.
In this problem, <u>28 students are arranged on 28 desks</u>, hence
, and:

Hence, there are
possible seating arrangements.
You can learn more about the arrangement formula at brainly.com/question/24648661