Emery Pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. Emery uses pounds per month of the chemical, estimates the holding cost to be % of the purchase price (because of spoilage), and estimates order costs to be $ per order. The cost schedules of two suppliers are as follows: Vendor 1 Vendor 2 Quantity Price/lb Quantity Price/lb 1-499 $ 1-399 $ 500-999 $ 400-799 $ 1,000+ $ 800-1,199 $ 1,200+ $ This exercise contains only parts a, b, and c