enable her to obtain a total return of at least 12%. percentage (as a decimal) of funds invested in the bond fund and S is the percentage (as a decimal) of funds invested in the stock fund.) Max( as a decimal) s.t. bond minimum fund minimum return percentage requirement B,S0 (b) Solve the problem using the graphical solution procedure. What is the value of the objective function at the optimal solution? at(B,S)=(