prompt: Mike decides to develop a plot of land.  He bought 200 acres for $70 per acre.  After development, he sold half of the acreage for $200 per acre.  How much profit did he make?
messages.content: Mike decides to develop a plot of land.  He bought 200 acres for $70 per acre.  After development, he sold half of the acreage for $200 per acre.  How much profit did he make?
messages.role: user
messages.content: He bought the land for 200*70=$<<200*70=14000>>14000
  He sold 200/2=<<200/2=100>>100 acres
  He got 100*200=$<<100*200=20000>>20,000 from selling this
  So he made a profit of 20,000-14,000=$<<20000-14000=6000>>6,000
  #### 6000
messages.role: assistant