Instructions Compute the missing amount for each of the following notes. Please include dollar signs, commas, and percentages when necessary. \begin{tabular}{|c|c|c|c|c|} \hline & Principal & Annual Interest Rate & Time & Total Interest \\ \hline (a) & $40,000 & 10% & 2.5 years & \\ \hline (b) & $120,000 & & 9 months & $7,200 \\ \hline (c) & & 10% & 90 days & $1.500 \\ \hline (d) & $40,000 & 9% & & $1,200 \\ \hline \end{tabular}