Can someone please help me with this. I'll give 50 points!

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p.s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)

What is the 8th term of the geometric sequence with this explicit formula? an= )(n-1)