What every president should know
1)
Electricity from the wall plug costs about 10 cents per kilowatt-hour (kWh). If you were to get the same electricity by buying AAA alkaline batteries at the local store, the cost of that electricity would be:
(A) 15 cents per kWh
(B) 94 cents per kWh
(C) $2.50 per kWh
(D) $1000.00 per kWh
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