Suppose that the equilibrium quantity and price for tangerines is ( 170 , $ 7 ) in a small closed-economy. When the economy opens the tangerine market to trading, the price of tangerines drops to $ 3 , the domestic quantity demanded increases to 190 and the domestic quantity supplied decreases to 131. What is the value of the area that represents the increase in total surplus, or the gains from trade, realized from opening the tangerine market

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut. for should be given. which businesses should cut hair? check all that apply. firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply. bobchoseanyvettethe maximum possible total surplus is