Question

Yu

求詳解🙏🙏🙏

(1 point) The manager of a large apartment complex knows from experience that 120 units will be occupied if the rent is 300
dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar
increase in rent. Similarly, one additional unit will be occupied for each 10 dollar decrease in rent. What rent should the
manager charge to maximize revenue?