Compact fluorescent bulbs are much more efficient at producing light than are ordinary incandescent bulbs. They initially cost much more, but last far longer and use much less electricity. According to one study of these bulbs, a compact bulb that produces as much light as a $100$ W incandescent bulb uses only $23\mathrm{.}0$ W of power. The compact bulb lasts $10000$ hours, on the average, and costs $ $12\mathrm{.}00,$ whereas the incandescent bulb costs only $ $0\mathrm{.}73,$ but lasts just $750$ hours. The study assumed that electricity cost $ $0\mathrm{.}080$ per kilowatt$-$hour and that the bulbs were on for $4\mathrm{.}0$ h

per day.

Part A

What is the total cost $($including the price of the bulbs$)$ to run incandescent bulbs for $3\mathrm{.}0$ years?

Express your answer in dollars.

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Part B

What is the total cost $($including the price of the bulbs$)$ to run compact fluorescent bulbs for $3\mathrm{.}0$ years?

Express your answer in dollars.

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Part C

How much do you save over $3\mathrm{.}0$ years if you use a compact fluorescent bulb instead of an incandescent bulb?

Express your answer in dollars.

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Part D

What is the resistance of a $"100$ W

$"$ fluorescent bulb? $($Remember$,$ it actually uses only $23$ W of power and operates across $120$ V

$.)$

Express your answer in ohms.

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