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A 100-W Driveway Light Bulb Is on 10 Hours Per $73\$ 73

Question 30

Multiple Choice

A 100-W driveway light bulb is on 10 hours per day. If the power company charges 10¢ for each kilowatt-hour of electricity used, estimate the yearly cost to operate the bulb if it is used every day For a 365-day year.


A) $73\$ 73
B) $37\$ 37
C) $7.30\$ 7.30
D) $3.65\$ 3.65

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