The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, even though her uncorrected near point is 79.0 cm from her eyes. When she is looking at a poster, the contacts form an image of the poster at a distance of 217 cm from her eyes.
(a) How far away is the poster actually located?
(b) If the poster is 0.350 m tall, how tall is the image formed by the contacts?