Find all solutions of the system of equations algebraically. write your solutions as coordinate points. y=x^2+x+9

3x+y=9

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Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

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.

Select a graph that have an equation with a < 0