need hep with D keep getting it wrong

Emery Pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled Emery uses 800 pounds per month of the chemical estimates the holding cost to be 50% of the purchase price (because of spotage), and ostmatos order costs to be $47 per order. The cost schedules of two suppliers are as follows Vendor 1 Vendor 2 Quantity Price/lb Quantity Price/lb 1499 $1700 1 390 $17 10 500-990 $16.75 400-799 S10 89 1,000 $16.50 800-1,199 S16 60 1.2004 516 25 This exercise contains only parts a, b, and c. 3) What is the economic order quantity for each supplier? For Vendor 1 at $17 00/pound, the economic order quantity is 326 units (round your response to the nearest whole number For Vendor 2 at $17 10/pound, the economic order quantity is 325 units cround your response to the nearest whole number b) What quantity should be ordered and which supplier should be used? Therefore the best option is to place the order with Vendor 2 for an order size of 1,200 units c) The total cost for the most economic order size is 5 166938 found your response to the nearest whole number)