Electricity Rates Commonwealth Edison Company's charge for
Chapter , Problem 1.5.109(choose chapter or problem)
Electricity Rates Commonwealth Edison Company's charge for electricity in May 2006 is 8.275 per kilowatt-hour. In addition, each monthly bill contains a customer charge of $7.58. If last year's bills ranged from a low of $63.47 to a high of $214.53, over what range did usage vary (in kilowatt-hours)? Source: Commonwealth Edison Co., Chicago, Illinois, 2006.
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