It would be 100. Because let's say you had to round 25 to the nearest 10 it would be 30 because everything ending with 5 (example: 5 to nearest 10 would go to 10 65 to the nearest ten would go to 70) but anything lower then 5 goes to the lower number.
Answer:
25 × 60 (1 minute) × 60 (1 hour) = 90,000 meters/hour
90,000 converted into miles is 55.923
454.90, the 5 makes the 9 go up which in turn makes the 8 also go up.
