Write a linear programming model fo the following linear programming problem. Do not solve, simply set up.

The new age techincal avenues store is accumulating an inventory of computers and fax machines. The store wantes no more than 30 of these two items in the store. On the average, each computer is stocks cost $2000 and each fax machine $800. The store has set an inventory budget constraint of $40800 for the two items. If the net profit on each computer is $200 and on each fax machine is $100, how many computers and how many fax machines should New Age Technical Avenues have in inventory to maximize its net profit?