Problem: Mark Jones' nuthouse is preparing a new product, a blend of mixed nuts. The product must be at most 50% peanuts, must have more almond than cashews, and must be at least 10% peacans. the blend will be solved in one pound bags. Mark's goal is to mix the nuts in such a manner that all conditions are satisfied and the cost per bag is minimized. Peanuts cost $1 per pound, cashews $3 per pound, almond $5 per pound and peacans cost $6 per pound. Identify the decision variables of this problem. Write out the objective and set of constraints for the problem.