Answer:
1: 29 2: -55
Step-by-step explanation:
1: ... 8, 11, 14, 17, 20, 23, 26, 29 ...
2: ... -19, -25, -31, -37, -43, -49, -55 ...
1: Find S10 for 2+5+8...
first number: 2
Common Difference: 3
nth number to obtain: 10
2: Find S10 for -1+-7+-13+-19...
First number: -1
Common Difference: -6
nth number to obtain: 10
