The account balance after 20 years can be determined as,
[tex]\begin{gathered} A=P(1+\frac{r}{100})^t \\ =1750(1+\frac{2}{100})^{20} \\ =2600.40 \end{gathered}[/tex]The interest can be determined as,
[tex]\begin{gathered} I=A-P \\ =2600.40-1750 \\ =850.40 \end{gathered}[/tex]Thus, the interest is $850.40 and the account balance is $2600.40.