a. If starting at t1, increasing t by one year multiplies the present value by b. Set the initial deposit to $10k, the annual interest rate to 5%, and years to compound to 10 . Increasing the present value from $10k to $12k will increase the future value in 10 $ years by: \begin{tabular}{|l|} \\ a larger present value \\ an additional 1+r \\ 1+r \\ r \\ \hline \end{tabular}