Question

A piece of thin spherical shell that has a radius of
curvature of 106 cm is silvered on both sides. The
concave side of the piece forms a real image 79.5
cm from the mirror. The piece is then turned
around so that its convex side faces the object.
The piece is moved so that the image is now 35
cm from the piece on the concave side. How far
was the mirror moved? Was it moved toward or
away from the object?