Q: a column number - 2, - 5, - 8, - 11, - 14 What is the 100th number?

Q: a column number - 2, - 5, - 8, - 11, - 14 What is the 100th number?

This is an arithmetic sequence with a tolerance of - 3
The formula is: an = a1 + (n-1) d
The result is: A100 = (- 2) + 99 * (- 3) = - 299