Question

8 junior high classes will be chosen to participate in a school improvement survey. there are 21 junior high classes in the school. in how many ways can the classes be chosen?

Answer 1

Step-by-step explanation:

There should be a test for the 21 junior high classes and rules and conditions should be made that the best 8 will be selected.

⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆

Maybe that's not an answer but that's how I understand the question