You have been investing $$300$ a month for the last $8$ years.

Today, your investment account is worth $$43,262.$ What is your

average rate of return on your investments?a $8\mathrm{.}41$ percentb $9\mathrm{.}36$ percentc $7\mathrm{.}23$ percentd $9\mathrm{.}69$ percente $7\mathrm{.}78$ percentX