The Monthly Charge in Dollars for X Kilowatt-Hours (KWh) of Electricity

The monthly charge in dollars for x kilowatt-hours (kWh) of electricity used by a residential consumer of Excelsior Electric Membership Corporation from November through June is given by the function ​ .
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What is the monthly charge if 1,100 kWh of electricity is consumed in a month? Round your answer to two decimal places.
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A) $1,100
B) $113.40
C) $96.30
D) $81.30
E) $91.30