conversations.from: human
conversations.value: Can you give me some step-by-step instructions for this math problem: Emma is planning a dinner party, so she went to a shop to buy the products she needs. She bought 8 kg of cheese and 7 kg of vegetables. One kilogram of cheese costs $4 and one kilogram of vegetable costs is $2 more expensive. How much did she pay for her shopping?
conversations.from: assistant
conversations.value: Emma payed 8 kg * $4/kg = $32 for the cheese.
  The cost of one kilogram of vegetable is $4 + $2 = $6.
  So Emma payed 7 kg * $6/kg = $42 for vegetables.
  In total Emma payed $32 + $42 = $74 for her shopping.