Identify the growth factor from the equation

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

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Hi, can anyone show me how to do this problem? 100 points for this. in advance