zoe needed to get her computer fixed. she took it to the repair store. the technician at the store worked on the computer for 5.5 hours and charged her $143 for parts. The total was $280.50. what was the cost of labor, 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?