A local bakery plans to expand its bread making capacity over the next 5 months. Currently,
it can produce 5000 loaves of bread per month, but estimates that its monthly demands will be as in the table.

	1. is	2. Oh	3. Oh	4. Oh	5. Oh
Sue	5500	6500	8000	8500	9500

It can increase its current capacity by installing three different sized furnaces. one time each

purchase cost and monthly running cost are as follows and only one oven of each size is available.
An oven can be purchased any month, but when an oven is purchased
, the monthly usage cost is incurred regardless of the extent to which the oven is used.

Oven	Monthly Capacity	purchase cost	Monthly Usage Cost
Small	1000	$ 300	75 dollars
Medium	2000	$500 dollars	100 dollars
Big	3500	$ 1,000	125 dollars

If intent, formulate and resolve an IP that specifies when (and which) a furnace should be purchased.
is to minimize the cost