a$.$Invest $$$$360\mathrm{.}00$ and receive $$$$773\mathrm{.}99$ in $8$ years.

b$.$Invest $$$$3$ comma $800\mathrm{.}00$ and receive $$$$12$ comma $180\mathrm{.}86$ in $14$ years.

c$.$Invest $$$$32$ comma $403\mathrm{.}47$ and receive $$$$120$ comma $000\mathrm{.}00$ in $26$ years.

d$.$Invest $$$$33$ comma $964\mathrm{.}92$ and receive $$$$1$ comma $500$ comma $000\mathrm{.}00$ in $30$ years.