$5.$ Annual demand for products X and Y are uniform and equal to $500$ and $1000,$ respectively. The supplier $($call it Supplier A$)$ has provided an ALL$-$UNITS Quantity for each product. Below is all relevant information on the products and suppliers:

Product X: Order Cost$=$$$500,$ Lead$-$time$=3$ months, discount schedule based on All$-$Units quantity discount:

Order Quantity Unit Cost $($c$)$

$0$