You receive a 54,000 check from your grandparents for graduation. You decide to save it toward a down payment on a house. You investit earning 11% per year and you think you will need to have 50,000 saved for the down payment How long wil it be before the 54,000 has grown to $8,000? To double the money you received from your grandparents, it will take year (Round to one decimal place)