fully explain

Question 1 Not complete Marked out of 1.00 V Flag question The following equations describe the demand and supply of the market for rental housing in Cyberport. Demand: P = 500 20Qd Supply: P = 200 + 10QS where P is the rent (SS/month), Gd and 03 are quantity demanded and quantity supplied respectively. If the rent ceiling is set at $250 a month, the quantity of housing rented is [Answer] units. (In decimal numbers, with two decimal places, please.) Answer: Question 2 Not complete Marked out of1.00 V Flag question With the above price ceiling, the maximum price that the marginal buyer is willing to pay for the last unit of house available is $[Answer]. (In decimal numbers, with two decimal places, please.) Answer: Question 3 Not complete Marked out of 1.00 \\V Flag question With the above price ceiling, the largest possible consumer surplus is $[Answer]. (In decimal numbers, with two decimal places, please.)