For the last $10$ years Piotr has been saving $$78\mathrm{.}75$ at the start of every day. The interest rate is $5\mathrm{.}950\%$ compounded semi$-$annually. If Piotr stops making deposits now, how much money will he have at the end of $3$ more years.

Question $4$Answer

a$.$

X $=$ $$447,467\mathrm{.}40.$

b$.$

None of the other answers is correct.

c$.$

X $=$ $$390,930\mathrm{.}32.$

d$.$

X $=$ $$466,111\mathrm{.}87.$

e$.$

X $=$ $$503,400\mathrm{.}82.$