Quadrilateral with two pairs of parallel sides and four right angles is what shaoe

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.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?