For items 8 and 9 are based on the following information Guava Co. uses the following model to determine its product mix for metal (M) and scrap metal (S): Max Z=130 + 70S If: 3M = 25$15, 2M = 4S are non negative values 8. What are the two inequality functions? a. Contributions c. Conditions b. Shadow prices d. Constraints 9. The point at which M= 2 and S = 3 would a. Minimize cost b. Lie in a corner c. Be a feasible point d. Be an infeasible point For items 10 and 11 are based on the following information Strawberry Company manufactures two models, small, and large. Each model is processed as follows: Small model (X) Large model (Y) Machining 2 hours 4 hours Polishing 1 hour 3 hours The available weekly hours to process the two models: 100 hours in the Machining Department and 90 hours in the Polishing Department. The contribution margins are P5 for small model (X) and P7 for large model (Y). 10. How would the objective function expressed? 11. How would the restriction (constraint) for the Machining Department be expressed