kg: 4. How long will it take any sum to double itself 5. (a) With a 12% simple interest rate? (5 (b) With a 12% rate compounded annually? (5 (c) With a 12% rate compounded continuously? (5 Compute the effective annual interest rate on each of these investments: (a) 24 percent nominal interest, compounded semiannually (E (b) 24 percent nominal interest, compounded quarterly (5 (c) 24 percent nominal interest, compounded continuously (E