The Hotel Summerfield has 500 rooms. Currently the hotel is filled . The daily rental is $ 700 per room.

For every $ 8 increase in rent the demand for rooms decreases by 4 rooms.

Let x = the number of $ 8 increases that can be made.

What should x be so as to maximize the revenue of the hotel ?

What is the rent per room when the revenue is maximized?

What is the maximum revenue?