Answer:
From the given information, we can see that the constant difference between consecutive terms is alternating between 11 and 1
1st term: 8
2nd term: 8 + 11 = 19
3rd term: 19 + 11 = 30
4th term: 30 + 1 = 31
5th term: 31 + 11 = 42
6th term: 42 + 1 = 43
7th term: 43 + 11 = 54
8th term: 54 + 1 = 55
.....
Explanation:
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