The expression $1.08s + 1.02b$ predicts the end-of-year value of a financial portfolio where $s$ is the value of stocks and $b$ is the value of bonds in the portfolio at the beginning of the year. What is the predicted end-of-year value of a portfolio that begins the year with $\$200$ in stocks and $\$100$ in bonds? $\$$ [[☃ numeric-input 1]]