Hi, can you help me to solve this problem step by step, please?

. Consider a converging lens of focal length . On the left side of the lens an object is placed at a distance from the lens equal to twice the focal length of the lens. On the other side of the lens is a concave mirror whose focal length is f; . The distance between the lens and the mirror is 20\". +172). a) Find the position, nature (real or virtual), and relative size of the image formed by this combination of'optical elements. :5) Make a graphical construction that shows schematically the formation ofthe previous image