Suppose that five years ago you borrowed $500,000 using a 30-year fixed-rate mortgage with an annual interest rate of 7.00% with monthly payments and compounding. The interest rate on 30-year fixed-rate mortgages has fallen to 6.25% and you are wondering whether you should refinance the loan. Refinancing costs are expected to be 4% of the new loan amount. What is the net present value of refinancing if you make all of the scheduled payments on the new loan

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