You would like to have $4,000 in 5 years for a special vacation following graduation by making deposits at the end of every six months in an annuity that pays 4. 5% compounded semiannually Use one of the formulas below to determine how much you should deposit at the end of every six months. A= P[(1+t/n) ⁿᵗ-1]/(t/n) ; P= A(t/n) /[(1+t/n) ⁿᵗ-1].