Find an ordered triple to represent u in u=1/2v-w+2z if v=(4,-3,5), w=(2,6,-1), and z=(3,0,4)

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.

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.

Find the slope of the line that passes through the points (-2, 4) and (-5, -6). -2/7 10/3 -2/3