<PRE><B>Question 675287</B>
You would like to have $4000 in four years for a special vacation following graduation by making deposits at the end of every 6 months in an annuity that pays 7% compounded semiannually. 
A. How much should you deposit at the end of every six months?
B. How much of the $4000 comes from deposits and how much comes from interest? 
I have tried the formula P=A(r/n)/(1+r/n)^nt -1 but it is not coming out to the correct answers. 

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P=A(r/n)/(1+r/n)^nt -1
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P = 4000(0.07/2)(1 + (0.07/2)^(2*4) -1
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P = 140(1.3168)-1
P = $183.35
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Cheers,
Stan H.</PRE>