we know that
We can use pace to describe time and distance We measure pace in units such as hours per mile or seconds per meter
in this problem
Michelle ran 3,484 meters at a constant speed over 13 minutes
13 minutes--------> 13*60-----> 780 sec
so
Michelle's pace=780/3484----> 0.22 seconds per meter
the answer is
Michelle's pace is 0.22 seconds per meter