Barb Jones wants to buy a new home, which costs $87,500. Barb is planning to make a 10% down payment. If Barb can obtain a loan at 9% with monthly payments, how much will each payment be if the loan is paid off over 30 years? Ignoring the time value of money, how much money could Barb save if the loan was for 20 years at 9% interest and a 15% down payment?