Mary’s yard is a mess. she needs to hire someone to prune her trees and shrubs. a landscaping service she calls quotes her a price of $15 consultation fee plus $8 an hour
for the actual work.
mary’s neighbor has offered to her out. she doesn’t charge a consultation fee, but does charge $10 an hour for her work.

who do you think mary should hire for a 3-hour job? when, if at all, would it be more economical to hire the other service.
(set up and solve a system of equations to answer this question.)

a. mary should hire her neighbor; if there was more than 7.5 hours of work she should hire the landscaping service.
b. mary should hire her neighbor; if there was more than 4.2 hours of work she should hire the landscaping service.
c. mary should hire the landscaping service; if there was more than 7.5 hours of work she should hire her neighbor.
d. mary should hire the landscaping service; if there was more than 4.2 hours of work she should hire her neighbor.