Find the following Accumulated Values $($AVs$)$ as of December $31,2017$:

a$)$ $$18500$ invested on December $31,2010$ at $6\mathrm{.}75\%$ interest.

b$)$ $$14500$ is invested on March $1,2016$ at $14\mathrm{.}55\%$ interest.

c$)$ The AV of $$15000$ invested on September $30,2012$ at $6\mathrm{.}125\%$ interest.