prompt: Vanessa has decided to sell some of her clothes to make pocket money, offering a standard price for each type of item. She made a total of $69 by selling 7 dresses and 4 shirts. If she managed to sell each shirt for $5, how much did the dresses sell for each?
messages.content: Vanessa has decided to sell some of her clothes to make pocket money, offering a standard price for each type of item. She made a total of $69 by selling 7 dresses and 4 shirts. If she managed to sell each shirt for $5, how much did the dresses sell for each?
messages.role: user
messages.content: Let V be the cost of each dress.
  (7 * V) + (4 * 5) = $69.
  So, 7 * V + 20 = $69.
  7V = $49.
  V = $49/7.
  V = $<<7=7>>7.
  #### 7
messages.role: assistant