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The cost of a large flat-screen television is decreasing 20% per year.a. If a 50-inch flat-screen now costs $1200, what will it cost in three

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The cost of a large flat-screen television is decreasing 20% per year.a. If a 50-inch flat-screen now costs $1200, what will it cost in three years?b. Using the same rate, what did it cost two years ago?c. Write the equation of a function to model this situation.

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