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A new sofa cost $1200 in 2010. The value of the couch decreases by 15% per year. (a) Write a formula for the value
A new sofa cost $1200 in 2010. The value of the couch decreases by 15% per year. (a) Write a formula for the value of the couch t years after 2010. (b) If the cost continues to decrease exponentially, what will the value of the sofa be in 5 years? (c) If the cost continues to decrease exponentially, how long will it take for the couch to reach half of its original price.
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