prompt: John decides to get a new apartment with a roommate.  His former rent was $2 per square foot for a 750 square foot apartment.  His new apartment cost $2800 per month, which he splits evenly with the roommate.  How much money does he save a year?
messages.content: John decides to get a new apartment with a roommate.  His former rent was $2 per square foot for a 750 square foot apartment.  His new apartment cost $2800 per month, which he splits evenly with the roommate.  How much money does he save a year?
messages.role: user
messages.content: His old apartment cost 750*$2=$<<750*2=1500>>1500 a month
  His new apartment cost $2800/2=$<<2800/2=1400>>1400 a month
  So he saves $1500-$1400=$<<1500-1400=100>>100 a month
  That means he saves $100*12=$<<100*12=1200>>1200 a year
  #### 1200
messages.role: assistant