21. Phil Armstrong earns a gross income of $5,355 per month. He has submitted an application for a fixed-rate mortgage with a monthly PITI of $1,492. Phil has other financial obligations totaling $625 per month a. What is his housing expense ratio? b. What is his total obligations ratio? According to the Lending Ratio Guidelines on page 468, for what type of mortgage would Phil qualify, if any? c. 22. Magda Leon is applying for a home mortgage with a monthly PITI of $724. She currently has a gross income of $2,856 and other monthly expenses of $411. a. What is Magda's housing expense ratio? b. What is her total obligations ratio? c. According to the lending ratio guidelines, for what type of mortgage would Magda qualify if any