Could negative two be used as a base to rewrite 32? 64?

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a.r'(–3, 1),  s'(–3, 5)b.r'(–1, 3),  s'(–5, 3)c.r'(1, 3),  s'(5, 3)d.r'(5, 3),  s'(1, 3)

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

How do you convert 1.27 to a percentage