A near-sighted person has a far point of 75cm. That person gets corrective glasses, which rest 2cm from their eyes, in order to give them a normal far point that is infinitely far away. However, those corrective lenses don't just change the person's far point. While wearing their glasses, what is this person's new near point (assume that without glasses, their near point is the normal 25cm)

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?