Please answer this I will give brainliest- Functions

1. Not a function

2. function

3. function

4. not a function

5. function

6. function

7. not a function

8. not a function

9. function

10. not a function

11. function

12. function

13. not a function

14. function

15. function

16. not a function

17. not a function

18. Function

19. I can't see it properally sorry

20. Function

This took a long time to write -_-

Step-by-step explanation:

35-60 students are taking math.