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Test Sequences and Series Unit 1 1. 7, 13, 19, 25, 31 2. a1= 11, a.n, = a.n-1 -3 3. a.n= -3+4 (n-1) 4. 4.1 feet 5. 21n 6. no 7. -34 8. 26 9. yes: 3\4 10. 1 over 3,125 11. -175 12. 450 13. (-2.2 + 4.4 n) 14. 783 15. 135 16. 3 17. 57, 29 over 125 18.It
