PROBLEM 4. A novice business analyst develops the following model to determine the optimal combination of socks and underwear to take on his next business trip. The model is as follows: Maximize 5S+7U subject to: 3S 2U≤ 45 7S3U≤ 33 2S+8U≤ 70 • Solve this problem graphically and determine how many of each item the analyst should pack • Show the corner points of the feasible solutions. Show the optimal z value and the optimal point (S, U)