Question 58 • ****Spring 2026 Financial Math - MA2007 MQS21QXV
After the increase, the first 600 kWh cost 7.5 cents each: 600 × $0.075 = $45. The remaining 275 kWh cost 13 cents each: 275 × $0.13 = $35.75. The total is $80.75, which rounds to $81, so the correct choice is $81.
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