conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: Elizabeth uses $3.00 worth of ingredients to make a  bag of granola.  She makes 20 bags and sells them for $6.00 a bag at the farmer's market.  An hour before closing, she has sold 15 bags and marks the remaining 5 bags down to $4.00 and sells them soon after.  What is her net profit?
conversations.from: assistant
conversations.value: She uses $3.00 of ingredients per 1 bag of granola and she makes 20 bags so she spends 3*20 = $60.00 on ingredients
  She sells 15 bags for $6.00 so she makes 15*6 = $90.00
  She sells her last 5 bags for $4.00 so she makes 5*4 = $20.00
  She made $90.00 and $20.00 for a total of 90+20 = $110.00
  She made $110.00 but spent $60.00 on ingredients so her net profit is 110-60 = $50.00