A family has a $142,891, 30-year mortgage at 6% compounded monthly. Find the monthly payment. Als find the unpaid balance after the following periods of time. (A) 10 years (B) 20 years (C) 25 years The monthly payment is $ (Round to the nearest cent as needed.) (A) The unpaid balance after 10 years is $ (Round to the nearest cent as needed.) (B) The unpaid balance after 20 years is $ (Round to the nearest cent as needed.) (C) The unpaid balance after 25 years is $ (Round to the nearest cent as needed.)