conversations.from: human
conversations.value: Can you walk me through the solution of: Spongebob works in a burger shop. If he sells 30 burgers for $2 each and 12 large fries for $1.5. How much will Spongebob earn for the day?
conversations.from: assistant
conversations.value: Spongebob earned 30 x $2 = $60 for the burgers.
  He also earned 12 x $1.5 = $18 for the large fries.
  Therefore, Spongebob earned $60 + $18 = $78 for the day.