Please show all work and formulas

Problem 8: Two thin lenses with a focal length of magnitude Siens:=12.0. crn, the first diverging and the second converging, are located Dep:=9.00. cm apart. An object hob; = 2.50 . mm tall is placed dot; :=20.0. cm to the left of the first (diverging) lens. (a) How far from this first lens is the final image formed? (b) Is the final image real or virtual? (c) What is the height of the final image? Is it erect or inverted? (a) di= -7.5 em M, =0.4 dzabj = 16.5 cm (b) d;2= 14 cm M,=-2.667 (c) Mlot=-1 hfinal--2.5 mm