Answer:
66.67%
Explanation:
The distance Emma has run is 19.65 miles.
The distance Kelton has run is13.1 miles.
We want to express 13.1 miles as a percentage of 19.65 miles.
The quantity that comes after 'of' becones the base or denominator.


Multiply by 100 by moving the decimals forward twice.

Therefore Kelton has covered 66.67% of Emma's distance.