The following parameters are provided in the question:
[tex]\begin{gathered} \text{Principal, P= \$1200} \\ \text{Time, T=1 year} \\ \text{Rate, R=59\%} \end{gathered}[/tex]The simple interest is given by the formula:
[tex]I=\frac{PRT}{100}[/tex]Thus,
[tex]\begin{gathered} I=\frac{1200\times59\times1}{100} \\ I=\text{ \$708} \end{gathered}[/tex]The amount, A, payable in one year is given as:
[tex]\begin{gathered} \text{Amount}=\text{Principal}+\text{Interest} \\ A=1200+708 \\ A=\text{ \$1908} \end{gathered}[/tex]