A diverging lens of focal length -9cm is placed 20 cm to

Question

1) Concave/Convex Lens

A) 12 cm to the left of convex lens of focal length 8.2 cm

1. distance from the convex lens, i = [(1/f)-(1/o)]^-1 = [(1/8.2)-(1/12)]^-1 = 25.89 cm
2. Is the initial image Real or Virtual? Real
3. Is the initial image Enlarged or Diminished? Enlarged
4. Is the initial image Upright or Inverted?
5. What is the initial magnification? m? m=-i/o = -25.89/12 = -2.1575
6. Draw a 3 ray diagram for this. (need help with this if possible)

B) a diverging lens of focal length -9cm is placed 20 cm to the right of the convex lens. Find: (need help with this whole section)

1. Distance from the concave lens, i
2. Is the final image Real or Virtual?
3. Is the final image Enlarged or Diminished?
4. Is the final image Upright or Inverted?
5. What is the Total Magnification? M?