1.

A room has a 60watt , a 100watt, and a 150 watt light bulb. How much does it cost to use all of the lamps for 2.5 hr @ 8 cents/ kwhr?

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EXPLANATION:

A room has a 60watt , a 100watt, and a 150 watt LIGHT bulb. How much does it cost to USE all of the lamps for 2.5 HR @ 8 cents/ kwhr?



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