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Hillier Hillier
wrote...
Posts: 550
Rep: 5 0
7 years ago
An electrician charges a flat fee of $90 for a home service call. In addition he charges $25 for every 20 minutes as labour cost. If one writes an equation to calculate total charges in terms of hours of labour, what will be the slope of the line?
A) 25
B) 90
C) 50
D) 75
E) 100
Textbook 
Contemporary Business Mathematics with Canadian Applications

Contemporary Business Mathematics with Canadian Applications


Edition: 11th
Authors:
Read 567 times
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wrote...
7 years ago
D
Hillier Author
wrote...
6 years ago
Thank you for helping
wrote...
4 years ago
Thank you for providing me with such a detailed answer,  wonderful!!!
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