A. A person would be related to 1 in. : 1 ft. This is because an inch is not a large measurement and an average person is about 5 feet tall.
B. A football field would be best related 1cm:1m
C. The state of Washington would be best related to 1mm:1km. This is because 1km is in .6 miles. And 1cm could relate to 6 miles easily when spread about 240*360 miles in area.
D. The floor plan of a house would best be related to 1ft:1mile because 1 foot of paper could easily have a floorplan for a house drawn on it over a space for a mile.
E. 1mm:1km because the farm could be easily seen that way. I honestly dk and I hope I got these right. Good luck! (im very tired)