conversations.from: human
conversations.value: I'm completely lost with this math problem: A porcelain vase was originally priced at $200 but went on sale for 25% off. If Donna bought the porcelain vase and paid 10% sales tax, how much did she pay in total?
  Can you give me a hand?
conversations.from: assistant
conversations.value: Donna got $200 x 25/100 = $50 less for the porcelain vase.
  So, the porcelain vase is now $200 - $50 = $150.
  Donna has to pay $150 x 10/100 = $15 for the sales tax.
  Therefore, she paid $150 + $15 = $165 in total.