Financial Mathematics questions, need answers and work for both. Will rate kindly!

Question 8: Jeff deposits 10 into a fund today and 20 fifteen years later. Interest is credited at a nominal discount rate of d compounded quarterly for the first 10 years, and at a nominal interest rate of 6% compounded semi-annually thereafter. The accumulated balance in the fund at the end of 30 years is 100. Calculate d. (A) 4.33% (B) 4.43% (C) 4.53% (D) 4.63% (E) 4.73% Question 5: Bruce deposits 100 into a bank account. His account is credited interest at a nominal rate of interest of 4% convertible semi-annually. At the same time, Peter deposits 100 into a separate account. Peter's account is credited interest at a force of interest of 8. After 7.25 years, the value of each account is the same. Calculate 8. (A) 0.0388 (B) 0.0392 (C) 0.0396 (D) 0.0404 (E) 0.0414