44a. You just borrowed $148,827 to by a new house. The advertised interest rate was 6.52% APR with monthly compounding. The loan is 25 years long, with equally-sized monthly payments. The first payment is due in one month. Once you are completely done paying off the loan, how much will you have paid in principle, in total? (i.e. ignoring interest)

44b. You just borrowed $262,193 to by a new house. The advertised interest rate was 6.57% APR with monthly compounding. The loan is 40 years long. The size of the monthly payments will increase by 1% every month. The first payment is due in one month.

Once you are completely done paying off the loan, how much will you have paid in principle, in total?