What are the cost savings of purchasing and operating a $4.1…
What are the cost savings of purchasing and operating a $4.19 fluorescent lightbulb for its 9000 hour lifetime versus purchasing enough incandescent bulbs at $0.60 each – with each lasting 900 hours – and operating them for 9000 hours? Assume that electrity costs $0.14 per KWh and that the fluorescent bulb requires 16 W, whereas the incandescant bulb requires 75 W to operate.