Phil Pittman is interested in a fixed-rate mortgage for $300,000. He is undecided whether to choose a 15- or 30-year mortgage. The current mortgage rate is 4.5% for the 15-year mortgage and 5% for the 30-year mortgage. (Round your answers to the nearest dollar. Use this table, if necessary.) (a) What are the monthly principal and interest payments (in $) for each loan? 15-year mortgage 30-year mortgage S 5 (b) What is the total amount of interest (in $) paid on each loan? 15-year mortgage $ 30-year mortgage $ (c) Overall, how much more interest (in $) is paid by choosing the 30-year mortgage? $