conversations.from: human
conversations.value: I'm stuck on this math problem: Mike buys 6 rose bushes at 75 dollars each, 2 of them are for his friend and the rest are for him.  He also buys 2 tiger tooth aloes for 100 dollars each.  How much money did he spend on plants for himself?
  Can you help?
conversations.from: assistant
conversations.value: He bought 6-2=4 rose bushes for himself
  The rose bushes for himself cost 4*$75=$300
  He also spent 2*$100=$200 on aloes.
  He spent a total of $200+$300=$500