How does the coronet roofer making to some similar shapes relate to the scale factor

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Can someone me i’m confused. will give brainliest and a whole bunch of points

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.