Aseller buys an item from a manufacturer for $100 and sells it to a customer for $120. what term describes this extra $20?

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