Answer
The amount that will be received after 20 years is $\$19,129$ and the interest that will be received is $\$8729$ dollars.
Work Step by Step
We plug in:
$ P=520,r=0.06,n=1,t=20$
Therefore,
$\begin{align}
& A=\frac{520\left[ {{\left( 1+\frac{0.06}{1} \right)}^{1\cdot 20}}-1 \right]}{0.06} \\
& A=\frac{520\left[ {{\left( 1.06 \right)}^{20}}-1 \right]}{0.06} \\
& A\approx \$19,129\\\end{align}$
The interest is equal to the value of annuity minus total deposit.
Thus,
$\begin{align}
& \text{Interest}\approx \$19,129-\$520\cdot20\\&\approx\$8729\end{align}$
