conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: Chris buys 2 and a half dozen donuts on his way to work to share with his co-workers.  While driving, he eats 10% of the donuts.  Once inside, he grabs another 4 donuts for his afternoon snack.  How many donuts are left for his co-workers?
conversations.from: assistant
conversations.value: He buys 2 and a half dozen donuts so that's 2.5*12 = 30 donuts
  He eats 10% of the donuts on his way to work so he eats .10*30 = 3 donuts
  He bought 30 donuts and ate 3 so that leaves 30-3 = 27 donuts
  Once inside, he grabs another 4 donuts of his afternoon snack so that leaves 27-4 = 23 donuts for his co-workers