conversations.from: human
conversations.value: Solve the math problem: An 18-month magazine subscription is normally $34. The magazine is currently running a promotion for $0.25 off each twice-a-month issue when signing up for the 18-month subscription. How many dollars cheaper is the promotional subscription than the normal one?
conversations.from: assistant
conversations.value: The subscription sends twice monthly issues, so there are 2 * 18 = 36 issues.
  Thus, the promotional offer is 36 * 0.25 = $9 cheaper than the normal subscription.