Irene is saving for a new car she hopes to purchase either four or six years from now. Irene invests $$15,000$ in a growth stock that does not pay dividends and expects a $6$ percent annual before$-$tax return $($the investment is tax deferred$).$ When she cashes in the investment after either four or six years, she expects the applicable marginal tax rate on long$-$term capital gains to be $25$ percent.

Note: For all requirements, do not round intermediate calculations. Round your final answers to nearest whole dollar amount.