At this distance how large does the image of the coin appear on her retina?

Anna holds an 11 D magnifier directly in front of her eye to get
a close look at a 19-mm -diameter penny. Assume a typical 25 cm
near point and a distance of 1.7 cm between the lens and the
retina.

Part A:

What is the closest possible distance that she can hold the coin
to have it appear in focus?

Express your answer with the appropriate units.

Answer: 6.7 cm

Part B:

At this distance, how large does the image of the coin appear on
her retina?

Express your answer with the appropriate units.