conversations.from: human
conversations.value: Maddy is buying pizza for her cousin's soccer game. There are 12 team members and 3 coaches. Each team member brings 2 guests. A pizza will serve 3 people. If each pizza costs $15, how many dollars will Maddy spend?
  Find the solution.
conversations.from: assistant
conversations.value: Maddy is buying pizza for 12 + 3 + (12*2) = 39 people.
  Thus, she needs to buy 39/3=13 pizzas.
  Thus, she will spend $15*13=$195.