conversations.from: human
conversations.value: Explain how to solve this math problem: Johannes owns a vegetable shop, he sells cabbage for $2 per kilogram. If Johannes was able to earn $30 last Wednesday, $24 last Friday, and $42 today, how many kilograms of cabbage was he able to sell?
conversations.from: assistant
conversations.value: Johannes was able to sell $30 / $2 = 15 kilograms last Wednesday.
  He was able to sell $24 / $2 = 12 kilograms last Friday.
  And he was able to sell $42 / $2 = 21 kilograms today.
  Therefore, Johannes was able to sell is 15 + 12 + 21 = 48 kilograms of cabbage.