Intro to Sequences & Series pls show work

Directions: Find the first five terms of each sequence. 1. a, =9; a, = a, 1 - 2 (for n 2 2) 2. a, = 4; a, =-30, 1 +1 (for n 2 2) 3. a, = 120; a, = =a, 1 +8 (for n 2 2) 4. a, =2, a2 =5; a,, = d, 1 . d, 2 -4 (for n 2 3) Directions: Write a possible recursive rule, then find a,. 5. {7, 12, 17, 22, 27, ...} 6. {2, 3, 8, 19, 46, ...} Directions: Find the first five terms of each sequence. 7. a, =-2(n -7) 8. a, = 9. a, = 4n2 10. a, = (n +1)' Directions: Write a possible explicit rule, then find a,. 11. {-7, -6, -5, -4, -3, ...} 12. (5, 7, 9, 11, 13, ...} 13. {0, 7, 26, 63, 124, ...} 1 1 1 3 25 3'2'5'3'7'" Directions: Find the partial sum for each sequence. 15. (38, 31, 24, 17, ... ) ; $12 16. (1, 8, 27, 64, 125,...} ; S