please show work.

first five years 1) william Chases william chooses to finance his 30 mortgage of 250,000 with interest only payments for the first s and then conventional pa mortyase Payments for the remaining 25 yous 'If his APR is 7.0% payable monthly a) what is his monthly payment for the b) what is his monthly payment for the next 25 yeurs 2) Jeanette Chouses a 5 yeur Arm for her 30 year mortsase of $350,000 Where the APR for the first 5 years is 3% and 6% there after a) what is her monthly payment for the first 5 b) what is her monthly payment starting with the 6th your? 2 years