Identify proportional relationships in tables

Divide each y by its x. If every pair gives the same number, the table is proportional.

1. Is this table proportional? x = 3, 6, 7 and y = 12, 21, 24. Write yes or no.
2. Is this table proportional? x = 2, 5, 6 and y = 10, 26, 32. Write yes or no.
3. Is this table proportional? x = 1, 2, 3 and y = 10, 15, 20. Write yes or no.
4. Is this table proportional? x = 3, 4, 6 and y = 12, 16, 24. Write yes or no.
5. Is this table proportional? x = 3, 5, 6 and y = 22, 34, 40. Write yes or no.
6. Is this table proportional? x = 1, 2, 5 and y = 6, 12, 30. Write yes or no.
7. Is this table proportional? x = 3, 5, 7 and y = 27, 45, 63. Write yes or no.
8. Is this table proportional? x = 2, 5, 6 and y = 23, 50, 59. Write yes or no.
9. Is this table proportional? x = 2, 3, 4, 5 and y = 8, 12, 16, 20. Write yes or no.
10. Is this table proportional? x = 2, 4, 5, 8 and y = 24, 48, 60, 96. Write yes or no.
11. Is this table proportional? x = 2, 5, 6, 9 and y = 20, 50, 60, 90. Write yes or no.
12. Is this table proportional? x = 3, 5, 6, 7 and y = 24, 45, 58, 71. Write yes or no.
13. Is this table proportional? x = 2, 4, 7, 9 and y = 24, 48, 84, 108. Write yes or no.
14. Is this table proportional? x = 2, 3, 5, 7 and y = 25, 35, 55, 75. Write yes or no.
15. Is this table proportional? x = 3, 5, 6, 9 and y = 6, 10, 12, 18. Write yes or no.
16. Is this table proportional? x = 1, 3, 4, 7 and y = 7, 17, 22, 37. Write yes or no.
17. Is this table proportional? x = 2, 5, 8, 10, 11 and y = 24, 60, 96, 120, 132. Write yes or no.
18. Is this table proportional? x = 1, 2, 5, 8, 10 and y = 16, 32, 80, 128, 160. Write yes or no.
19. Is this table proportional? x = 2, 4, 5, 8, 11 and y = 26, 52, 65, 104, 143. Write yes or no.
20. Is this table proportional? x = 2, 3, 4, 6, 7 and y = 34, 51, 68, 102, 119. Write yes or no.