Margie calculated that she would spend $175 on school supplies this year. she actually spent $97.50 on school supplies. what is margie’s percent of error?

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?