A pair of fair dice is rolled once. Suppose that you lose $8 if the dice sum to 7 and win $10 if the dice sum to 11 or 8. How much should you win or lose if any other number turns up in order for the game to be fair? To keep the game fair, you should $f the dice sum to any other number. (Do not round until the final answer. Then round to the nearest cent as needed.)