def format_receipt(price, qty):
    """Return a 3-line formatted receipt as a single string.

    Format (note the dollar sign and 2-decimal places on prices):

      Item price: $<price>
      Quantity: <qty>
      Total: $<price * qty>

    format_receipt(9.99, 3) returns:
      "Item price: $9.99\nQuantity: 3\nTotal: $29.97"
    """
    pass