At that rate, a $30,000 investment would earn $44,102 in interest over two decades. The stock market has historically returned an average of 10% per year (before inflation), as measured by the S&P ...

The $8,000 in cash remaining, he plans to either add to his bank account (bringing that up to $18,000), or invest in the stock market. Plan B is to keep paying down the auto loan gradually ...