Problem 5-15 Calculating the Interest Rate (LO2) Find the interest rate implied by the following combinations of present and future values, (Do not round intermediote calculotions. Enter your answers as a whole percent, Leove no cells blank-be certain to enter "0" wherever required.) If you eam 6% per year on your bank account, how long will it take an account with \$100 to double to \$2002 (Do not round) intermediote calculations. Round your onswer to 2 decimal ploces.) Old Time Savings Bank pays 4% interest on its savings accounts. If you deposit $1,000 in the bank and leave it there: (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. How much interest will you earn in the first year? b. How much interest will you earn in the second year? c. How mich interest will you catn in the 10th year