Answer:
31 as it has only 2 factors which is 1 and 31
105/1760 = x/60
105 yards per minute over 1760 (number of yards in a mile) is equal to X (solving) over 60 (the number of minutes in an hour)
x = 3.579 = 3.58 miles per hour.
Answer: sorry I'm late but maybe it'll help someone else! It is A,B,D!
Step-by-step explanation: