Formulate problem as an LP model. Please clearly define your decision variables. Health. Kim Walrath has a nutritional deficiency and is told to take at least 2400mg of iron, 2100mg of vitamin B1, and 1500mg of vitamin B-2. One Maxivite pill contains 40mg of iron, 10mg of B-1, and 5mg of B-2 and costs 6 cents. One Healthovite pill provides 10mg of iron, 15mg of B-1, and 15mg of B-2 and costs 8 cents. What combination of Maxivite and Healthovite will meet the requirement at lowest cost? a) Formulate problem as an LP model. Please clearly define your decision variables. b) Find the optimal solution using graphical method. How many pills of each supplement should Kim take? What is the minimum cost