The expression 1.08s + 1.02b1.08s+1.02b1, point, 08, s, plus, 1, point, 02, b predicts the end-of-year value of a financial portfolio where sss is the value of stocks and bbb 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$200dollar sign, 200 in stocks and \$100$100dollar sign, 100 in bonds?