the interest rates were wrong

\begin{tabular}{|ccccc|} \hline & Date of Note & Principal & Interest Rate (\%) & Terms \\ \hline (a) & June 10 & $85,800 & 7% & 60 days \\ (b) & July 14 & $51,000 & 8% & 90 days \\ (c) & April 27 & $11,680 & 9% & 75 days \\ \hline \end{tabular} \begin{tabular}{|c|c|c|} \hline & Interest & Maturity Date \\ \hline$ & \begin{tabular}{r} 7887.287 \\ 987 \end{tabular} & August 9 \\ \hline \end{tabular} (b) $1,006.027 October 12 (c) $216 July 11