The banking and lending industry is one of the most profitable industries in the world for the lender, not the borrower. If you buy a home and take out a 30-year home mortgage loan for
$500,000 at an APR of 4.5%, your monthly principal + interest payment will be $2,533, every
month for 30 years, or until you sell your home.

a. Assuming you stay in your home for 30 years, how much total money will you have paid the
bank in 30 years?

b. How much of the total money paid in part (a) was interest to the bank/lender-money you
never see again?