$20.$ If you were to open a savings account that earns $3\%$ interest and compounded quarterly, what would be the total amount in your account after $10$ years if you made an opening deposit of $$8710.$Assume PV to be negative to make FV positive. Excel formula function.

$17.$ What is the amount of total interesf dollars earned on a $$5000$ deposit earning $6\%$ for $20$ years. Excel function.