Electricity Rates Commonwealth Edison Company’s charge for electricity in January 2013 is 10.62¢ per kilowatt-hour. In addition, each monthly bill contains a customer charge of $13.04. If last year’s bills ranged from a low of $82.07 to a high of $278.54, over what range did usage vary (in kilowatthours)?
Source: Commonwealth Edison Co., January 2013.
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