Ruby-Star Incorporated is considering two different vendors for one of its top-selling products which has an average weekly demand of 100 units and is valued at $65 per unit. Inbound shipments from vendor 1 will average 400 units with an average lead time (including ordering delays and transit time) of 4 weeks. Inbound shipments from vendor 2 will average 460 units with an average lead time of 1 week. Ruby-Star operates 52 weeks per year; it carries a 4-week supply of inventory as safety stock and no anticipation inventory. a. The average aggregate inventory value of the product if Ruby-Star used vendor 1 exclusively is $28,400. (Enter your response as a whole number.) b. The average aggregate inventory value of the product if Ruby-Star used vendor 2 exclusively is $27,600. (Enter your response as a whole number.) c. How would your analysis change if average weekly demand increased to 80 units per week? The average aggregate inventory value of the product if Ruby-Star used vendor 1 exclusively is $ . (Enter your response as a whole number.) The average aggregate inventory value of the product if Ruby-Star used vendor 2 exclusively is $37,200. (Enter your response as a whole number.)