Answer:
Becky ran farther by 560 ft
Step-by-step explanation:
Given that;
Keith's treadmill said he had run 10,000 feet

Becky's treadmill said she had run two miles;

converting miles to feet;

So;

From the derived values, since B is greater than K, then Becky ran farther than Keith.
And by;

Therefore, Becky ran farther by 560 ft