Solve the systems of equations through elimination, show work
8x+y=-16
-3x+y=-15

Find the surface area of the prism formed by the net

Consider symmetrically placed rectangular insulators with uniformly charged distributions of equal magnitude as shown. x y −−−−−− what is the direction of the net field at the origin?

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)