Charles has the following potential investment for his money. He has the following requirement for the investment: - The total budget is 100,000 The expected annual return is at least 7.5%. At least 50% invested in "A-Rated" investments. At least 40% invested in immediately liquid investments. No more than $30,000 in savings accounts and certificates of deposit. Determine the amount of money to be placed in each investment so that the overall risk is minimized. (hint: the overall risk can be considered as the sum-product of the amount of money on the investments and the corresponding risk factors) Solve the LP using excel solver. Please paste the screenshot of the excel solution here