An object is placed 4 cm to the left of a concave lens with focal length -6 cm, as shown in the figure below. A convex lens with focal length +12 cm is placed a distance d = 5 cm to the right of the concave lens. (a) Find the location of the final image with respect to the convex lens. (In other words, how far from the convex lens, and on which side of this lens, is the final image located?) (b) Indicate whether the final image is real or virtual, and calculate its magnification.