conversations.from: human
conversations.value: Can you walk me through the solution of: Each year a store decreased the price of a certain model of TV by $35. If the price in 2001 was $1950, what was the price in 2009?
conversations.from: assistant
conversations.value: The period the store had the TV was 2009-2001= 8 years.
  The TV decreased by $35/year * 8 years = $280.
  So the price in 2009 was $1950 - $280 = $1670.