conversations.from: human
conversations.value: Explain how to solve this math problem: Leon ordered 3 sets of toy organizers for $78 per set and 2 gaming chairs for $83 each. If there is a delivery fee that is 5% of the total sales, how much did Leon pay?
conversations.from: assistant
conversations.value: Three sets of toy organizers cost $78 x 3 = $234.
  Two gaming chairs cost $83 x 2 = $166
  Leon's total orders amount to $234 + $166 = $400.
  Then, the delivery fee is $400 x 5/100 = $20.
  So, Leon had to pay a total of $400 + $20 = $420.