Formulate the decision variables, objective function, and constraints for each problem. Run the analysis using any of the methods (graphical, using Solver Add-in or LINDO program) and interpret the results. Innis Investments manages funds for companies and wealthy clients. The investment strategy is tailored to each client's needs. For a new client, Innis has been authorized to invest up to Php1.2 M in two investment funds: a stock fund and a money market fund. Each unit of the stock fund costs Php50 and provides an annual rate of return of 10%, each unit of the money market fund costs Php100 and provides an annual rate of return of 4%. The client wants to minimize risk but earn an annual income from the investment of at least Php60,000. According to Innis's risk measurement system, each unit purchased in the stock fund has a risk index of 8, and each unit purchased in the money market fund has a risk index of 3; the higher risk index associated with the stock fund simply indicates that it is a riskier investment. Innis's client also has specified that at least Php300,000 be invested in the money market fund. How many units of each fund should Innis purchase for the client if the objective is to minimize the total risk index for the portfolio