conversations.from: human
conversations.value: While on vacation in New York, Greg went out for a lunch that cost $100. If sales tax in New York is 4% and he left a 6% tip, how much did Greg pay?
  How to solve this?
conversations.from: assistant
conversations.value: The sales tax is worth $100 x 4/100 = $4.
  Greg left $100 x 6/100 = $6 tip.
  So, the total cost for the tax and the tip is $4 + $6 = $10
  Therefore, Greg paid $100 + $10 = $110 in all.