What is the simple interest rate that will triple an investment (make it three times as much) in 12 years? Select one: O a. 9.59% O b. 25.00% O c. 8.33% O d. 16.67% O e. 5.95% How much money do you need to deposit in a bank account now so that you can withdraw $10,000 every 8 years forever if the interest rate is 5% per year, and the first withdrawal is scheduled 8 years from now? Select one: a. $24.432 b. $30,384 c. $20,384 od $195,458