conversations.from: human
conversations.value: Explain how to solve this math problem: A plant supplier was able to sell 20 pieces of orchids for $50 each and 15 pieces potted Chinese money plant for $25. The money he earned was then used to pay his two workers $40 each and to buy new pots worth $150. How much money was left from the plant supplier's earnings?
conversations.from: assistant
conversations.value: The plant supplier earned $50 x 20 = $1000 for the orchids.
  He earned $25 x 15 = $375 for the potted Chinese money plants.
  So, his total earnings was $1000 + $375 = $1375.
  Then he paid $40 x 2 = $80 to his workers.
  He used a total of $80 + $150 = $230 for the worker's pay and new pots.
  Hence, he was left with $1375 - $230 = $1145 from his earnings.