1. The problem statement, all variables and given/known data A)Find the final position of the image (from the object, I assume?) B)Find the size of the final image of the object. 2. Relevant equations 1/f = 1/do + 1/di 3. The attempt at a solution 1) Solved first distance: 1/5 - 1/4 = 1/di --> 4/20 - 5/20, di = -20cm 2) Use di1 for do in second calculation, but my answer is incorrect.