is this the site where you can show a math problem and get help and the answer. I just got 2- 40% on this site.

Sole the equation 6n + 9 = -3n - 21 - 6 for n

The first term of a sequence is -12. the recursive formula for the sequence is an = an-1 + 9. what are the next 3 terms in the sequence? a) -3, -15, -27 b) -3, 6, 15 c) -3, -6, -3 d) -3, -6, 3

If wxyz is a square, which statements must be true? plz < 3