17. For the series 23, 4n, find the number of terms in the series. A. 7 terms C. 16 terms B. 8 terms D. 9 terms 18. For the series 23. (n + 1), find the number of terms in the series. A. 4 terms B. 13 terms C. 6 terms D. 5 terms 19. For the series ).=4 (-4n), find the first and the last term. A. -12, - 32 B. 0, 3 C. -8, -11 D. -16, -28 20. For the series ES_, (n + 4), find the first and the last term. A. 5, 8 B. - 3, 1 C. 5, 9 D. 4, 20 21. Use summation notation to write the series 49 + 54 + 59 + ... for 14 terms. 2751 (49 + 5n) C. El4, (44 + 5n) B. E.13, (44 + 5n) D. En (49 + 5n) 22. Use summation notation to write the series 2 + 4 + 6 + 8 + ... for 10 terms. 2420 2n B. 2." n= (n + 2) 21 2n 23. Use summation notation to write the series 6.6 + 15.4 + 24.2 + ... for 5 terms. A. Zner (-2.2 + 8.8n) C. En-D (-2.2 + 8.8n) (8.8 + 6.6n) D. ES, (8.8 + 6.6n) 24. Expand Enzo A. 0+2+4+6+8 C.2+4+6+8+ 10 B. 0+2+4+6+8 +... D.2+4+6+8+ 10 + ... 25. Find the sum of notation En . (8.8n - 2.2). B. 46.2 C. 118.8 D. 77.0 A. 79.2