$$Ruby$-$Star Incorporated is considering two different vendors for one of its$$ top$-$selling products which has an average weekly demand of $60$ units and is valued at $$$$70$ per unit. Inbound shipments from vendor $1$ will average $390$ units with an average lead time$($including ordering delays and transit$$ time$)$ of $2$ weeks. Inbound shipments from vendor $2$ will average $510$ units with an average lead time of $1$week. $$Ruby$-$Star operates $52$ weeks per$$ year; it carries a $2-$week supply of inventory as safety stock and no anticipation inventory.

Part $2$

a$.$ The average aggregate inventory value of the product if$$ Ruby$-$Star used vendor $1$ exclusively is $$$enter your response here. $($Enter your response as a whole