conversations.from: human
conversations.value: Can you guide me through solving this problem: Paul went to the sporting goods store to buy a tennis racket.  His favorite brand was having a sale that offered customers a deal to buy one racket at full price and get the second racket for half off the full price.   If he purchased two rackets that were each originally marked at a full price of $60, how much did he spend on the two rackets, in dollars?
conversations.from: assistant
conversations.value: Half off the full price of $60 is $60/2=$30 off.
  Thus, for the two rackets, Paul spends $60+$60-$30=$90.