Annuities and compounding Personal Finance Problem Janet Boyle intends to deposit $280 per year in a credit union for the next 10 years, and the credit union pays an annual interest rate of 8%. a. Determine the future value that Janet will have in 10 years, given that end-of-period deposits are made and no interest is withdrawn, if (1) \$280 is deposited annually and the credit union pays interest annually. (2) $140 is deposited semiannually and the credit union pays interest semiannually. (3) $70 is deposited quarterly and the credit union pays interest quarterly. b. Use your finding in part a to discuss the effect of more frequent deposits and compounding of interest on the future value of an annuity