Question 309103
At age 30 to save for retirement Rebecca decides to deposit $75 at the end of 49
A=P[(1+R/N)^(N)(T)-1]/R/N
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A(35) = 75[[(1+(0.061/12)]^(12*35) -1]/(0.061/12)
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A(35) = 75[1457.9868] = $109,349.01
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B. Find the interest 
I = 109,349.01 - 75*35*12 = $77849.01
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Cheers,
Stan H.
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