Multiple Choice
If electricity costs 6.00¢/kWh (kilowatt-hour) ,how much would it cost you to run a 120 W stereo system 4.0 hours per day for 4.0 weeks?
A) $0.81
B) $0.12
C) $1.38
D) $2.27
Correct Answer:

Verified
Correct Answer:
Verified
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