conversations.from: human
conversations.value: Jerry was asked by her mom to do grocery shopping. He needs to buy 2 liters of mustard oil that costs $13 per liter, 3 pounds of gluten-free penne pasta that costs $4 per pound, and 1  pound of pasta sauce that costs $5. If Jerry can keep the rest of the $50 after grocery shopping, how much money will he have?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: The cost of 2 liters of mustard oil is $13 x 2 = $26.
  The cost of 3 pounds of gluten-free penne pasta is $4 x 3 = $12.
  So, Jerry spent a total of $26 + $12 + $5 = $43 for grocery shopping.
  Thus, Jerry will have $50 - $43 = $7 for himself.