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Calculating Interest: Using 360 as the denominator, calculate interest \begin{tabular}{lll} $3,000 & 11.00% & 120 days \\ $900 & 10.00% & 30 days \\ $2,900 & 7.00% & 90 days \end{tabular} Completing the chart: Find the missing values by solving the equation, I=PRT, for the variable \begin{tabular}{|c|c|c|c|} \hline Principal & Rate & Tine & Interest \\ \hline$3,110 & 12.00% & \multirow[b]{2}{*}{30 days } & $103.67 \\ \hline$900 & \multirow[b]{2}{*}{10.00%} & & $7.50 \\ \hline \multirow{3}{*}{$4,500} & & 30 days & $41.67 \\ \hline & 10.00% & & $37.50 \\ \hline & 12.00% & 60 days & $100.00 \\ \hline \multicolumn{2}{|l|}{$750} & 30 days & $6.25 \\ \hline$1,000 & 12.00% & 30 datys & \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|} \hline$11,600 & & 45 days & $101.50 \\ \hline \multirow[t]{2}{*}{$10,000} & 9.00% & 60 days & \\ \hline & 7.00% & 60 days & $46.67 \\ \hline \end{tabular}