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Mathematics, 09.10.2019 02:30 avisconti571

Erik needs a plumber and must decide between two companies. for a service visit, plumber a charges $85 to send a plumber, plus $20/h. plumber b charges $60 to send a plumber, plus $30/h. the system that models this situation is given, where c is the cost of hiring a plumber and h is the number of hours the plumber works. the solution to the system is (2.5, 135).
what is the correct interpretation of the solution of this system?
c=85+20h
c=60+30h

a. plumber a will charge more when he works 2.5 h, charging $135.
b. plumber b will charge more when she works 2.5 h, charging $135.
c. plumber a and plumber b will both charge $135 if they each work 2.5 h.
d. plumber a and plumber b will both charge $2.50 if they each work 135 h.
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