A social problem can best be described as:
1 answer:
You might be interested in
So, we know the sum of the first 17 terms is -170, thus S₁₇ = -170, and we also know the first term is 2, well
well, since the 17th term is that much, let's check what "d" is then anyway,
well, since the 17th term is that much, let's check what "d" is then anyway,