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At 10 cents per kilowatt-hour, how much does it cost to run a 100 watt light bulb for 200 hours every month?
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At 10 cents per kilowatt-hour, how much does it cost to run a 100 watt light bulb for 200 hours every month?

User Wtaniguchi
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Answer: $2

Step-by-step explanation:

User Estanford
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