A plumber charges customers $45 for a service call plus $60 per hour of repair. The expression below can be used to determine the total dollar amount of charges based on h hours of repair. 45
+
60
h

Which expression can also be used to determine the total dollar amount of charges?

A.
105
h

B.
675
h

C.
15
(
3
+
4
h
)
D.
15
(
30
+
45
h
)

(40 points) i need some . an answer definition is appreciated as well.

How to solve a simultaneous equation involved with fractions?

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