Hey guys, just hoping for a hand on this problem that I think may appear on the final for my Calc class. Any tips would be appreciated!

(1 pt) A manufacturer of computers needs 18,000 cases of memory chips each year. Every shipment of memory chips costs 200 dollars. The memory chips have to be stored in a special dust-free environment at an annual cost of 10 dollars per case based on the maximum number of cases on hand at any one time. Assuming just-in-time inventory management, how many cases of memory chips should be ordered in each shipment in order to minimize the annual inventory costs? You should round off to the nearest case.

I figure the cost is C=200s+10m, s being number of shipments and m being the maximum number of cases in storage, but I don't know where exactly to go from there.

Thanks!