conversations.from: human
conversations.value: Find the answer to this math problem: Leonard and his brother Michael bought presents for their father. Leonard bought a wallet at $50 and two pairs of sneakers at $100 each pair, while Michael bought a backpack at $100 and two pairs of jeans at $50 each pair. How much did they spend in all?
conversations.from: assistant
conversations.value: Two pairs of sneakers cost 2 x $100 = $200.
  So, Leonard spent $50 + $200 = $250.
  Two pairs of jeans cost 2 x $50 = $100.
  Thus, Michael spent $100 + $100 = $200.
  Therefore, they spent a total of $250 + $200 = $450 in all.