Before she started hiking, Jessica’s altimeter read +250 meters. She climbed 200 meters and reached point A, which is at an elev
ation of 450 meters above sea level. She then descended 500 meters to point B, which is at an elevation of 50 meters below sea level. The reading on the altimeter at point A was (?) meters. The reading on the altimeter at point B was (?) meters.
