conversations.from: human
conversations.value: Can you explain how to solve this math problem: Teresa sells large stuffed animals for three times the price of small stuffed animals. Today, she sold twice as many small stuffed animals as large ones and earned $120 from the sales. Each small stuffed animal costs $4. How many small stuffed animals did she sell?
conversations.from: assistant
conversations.value: Let A be the number of large stuffed animals Teresa sold.
  Thus, she sold 2A small stuffed animals.
  Large stuffed animals cost 3 * 4 = $12.
  She earned 12A + 4 * 2A = 12A + 8A = 20A = $120 from selling stuffed animals today.
  Thus, she sold A = 120 / 20 = 6 large stuffed animals today.
  Teresa sold twice as many small stuffed animals, so she sold 6 * 2 = 12 small stuffed animals today.