A. Sally is buying a car and plans to take out a loan with a 4% interest rate and a 5-year term. Sally wants to spend $400 per month on the loan payment. What is the most Sally can spend on the car today?

B. Sally has recently taken out a $30,000, fully amortizing car loan where she will make one payment at the end of each year for 4 years. The loan's APR is 4.5%. How much of his second payment will go towards paying down the loan's balance?