The bank offers a credit card with an initial promotional rate of 0.0%. After six months, the rate adjusts to 21%. If no payments are required on an initial balance of $10,000, and the bank calculates payments based on a five year repayment schedule, what will the monthly payment be after six months

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars