b Find the interest Periodic Deposit 100 at the end of every six months Rate Time 4 5 compounded semiannually 25 years Click the icon to view some finance formulas a The value of the annuity is Do not round until the final answer Then round to the nearest dollar as needed Formulas A In the provided formulas P is the deposit made at the end of each compounding period r is the annual interest rate of the annuity in decimal form n is the number of compounding periods per year and A is the value of the annuity after t years A P 1 r 1 nt 1 1 P A CLA P F nt A