From the question we have the following information available;
[tex]\begin{gathered} \text{ Principal amount}=360 \\ \text{Interest}=15\%\text{ (\$15 per \$100, or }\frac{15}{100}) \end{gathered}[/tex]
Therefore, if you borrowed a sum of $360 as a short term cash advance based on the given repayment terms, your repayment after 10 days would be;
[tex]\begin{gathered} \text{ Repayment}=\text{ Principal x interest} \\ \text{ Repayment}=360\times15\% \\ \text{ Repayment}=360\times0.15 \\ \text{ Repayment}=54 \end{gathered}[/tex]
The interest to be repaid is $54.
This means the loan repayment would be;
[tex]\begin{gathered} \text{ Repayment}=\text{ Principal+Interest } \\ \text{ Repayment}=360+54 \\ \text{ Repayment}=414 \end{gathered}[/tex]
ANSWER:
You would have to pay back $414