Yuri descended 450 feet down a mountain. Her elevation changed at a
steady rate over 3 hours. What was her
change in elevation per hour?

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?