Your friend bought a home and the amount he financed with a 20 year mortgage was $125,000. Due to his credit and the economy the rate on the mortgage is 3.56%. After 120 months of payments he is considering refinancing the mortgage. What is the amount he would need to borrow on the new mortgage? 

Your friend's 30 year mortgage was $400,000 with a rate of 4.24%. How much interest has he paid after 60 months of payments? Give your answer in whole numbers with no decimal places and no dollar sign but be sure to submit your answer as negative if needed. Your