Brainliest + 30 points! asap

a function, h(x), is defined as shown.

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.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.