please do not just copy paste from another answer. And solve the model using LINGO. thanks

1. (20 marks) Cindy has $9000 to invest in a portfolio. Her investment alternatives and their expected returns are: Investment 1 2 3 Description Expected Return RRSP (retirement) 4.1% Employer's retirement plan 6.2% Money Market Fund 5.7% She will put at least $1500 into each investment, and cannot invest more than $9000 in total. In addition, she has three goals which may be violated if need be. Goal 1 is for the expected annual return to be at least $550. Goal 2 is to invest no more than $4000 in the two retirement plans combined. Goal 3 is to invest in investment 3 at least twice as much as in investment 1. Goal 1 is five times as important as Goal 2, and Goal 2 is twice as important as Goal 3. (a) Write the algebraic model for this problem. (b) Solve the model using LINGO or the Excel Solver. (c) State the solution in words