Given that;
It cost her $10 for every $100;
[tex]\text{For \$500 it will cost her 5}\times\text{ \$10 = \$50}[/tex]
It also cost her a one-time fee of $150.
The total cost for her $500 loan is;
[tex]\begin{gathered} C=\text{ \$50 + \$150} \\ C=\text{ \$200} \end{gathered}[/tex]
Therefore, the total cost for her $500 loan is;
[tex]\text{\$200}[/tex]
