How many years will it take for an initial investment of $3,542, earning 7.15% annually, to reach $6.778? Please enter your answer in number of years with at least two digits beyond the decimal point (e.g. 6.753753 years could be entered that way or as 6.75). You have future plans to buy a house 7 years from now. You estimate that a down payment of $16,824 will be required at that time. To accumulate that amount, you want to start making monthly payments into an account paying 4.12% interest. What will your monthly payments be? Enter your answer in dollars and cents! You are buying a car. The one you have chosen to purchase is going to cost you $28.134. Your car salesman has told you that you can purchase this vehicle for $549 per month for 72 months. What annual interest rate will you be paying