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2. 5. Equivalence. 1. 2. 4. =. 5. 10. Equivalence. 2. 2. 6. =. 15. 5. Equivalence. 3. 2. 8. =. 20. 5. Equivalence. 4. 2. 10. =. 25. 5. Equivalence. 5. 2. 12. =. 30. 5. Equivalence. 6. 2. 14. =. 35. 5. Equivalence. 7. 2. 16. =. 40. 5. 8. 10. 12.
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