What is it called when you have to pay taxes every year from one of the options below? Voluntary Compliance or Mandatory Law

I'm pretty sure its mandatory law because you have to pay taxes

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above