{
  "question_id": 5115,
  "hints": [
    {
      "hint_level": 1,
      "hint": "Dress costs n dollars."
    },
    {
      "hint_level": 2,
      "hint": "Bag costs 10 dollars less: n - 10."
    },
    {
      "hint_level": 3,
      "hint": "Total = n + (n - 10) = 2n - 10."
    }
  ]
}