conversations.from: human
conversations.value: Tim decides to light off some fireworks for the fourth of July.  He buys a package of fireworks worth $400 and another pack worth twice that much.  He gets a 20% discount on them.  He also buys a finale firework that costs $150.  How much did he spend in total?
conversations.from: assistant
conversations.value: The second package was worth 400*2=$800
  So the two packages were worth 400+800=$1200
  That means he got a discount of 1200*.2=$240
  So the packages cost 1200-240=$960
  So he spent a total of 960+150=$1110