1. Thirty days ago Tabby signed an agreement with the bankruptcy courts requiring her to make three payments of $400 plus interest in 30, 60, and 90 days, respectively, from the date of the agreement. Each payment was to include interest on the $400 principal at the rate of 11%. Tabby won a wrongful dismissal lawsuit and wishes to pay back the full amount fifteen days from now. If the courts agree, what single payment should Manon require in the new agreement if money is worth 8%?