Answer:
$3,956.91
Explanation:
The future value of an annuity is determined by the following expression:
[tex]FV = P*(\frac{(1+r)^n-1}{r} )[/tex]
For annualdeposits of $170, at a 6 percent rate for 15 years, the future value is:
[tex]FV = 170*(\frac{(1+0.06)^{15}-1}{0.06})\\FV =\$3,956.91[/tex]
Elaine gains $3,956.91 from preparing her own tax return.