Three years ago, you founded your own company. You invested $$120,000$ of your own money and received $6\mathrm{.}0$ million

shares of Series A preferred stock. Your company has since been through three additional rounds of financing.

a$.$ What is the pre$-$money valuation for the Series $D$ funding round?

b$.$ What is the post$-$money valuation for the Series $D$ funding round?