Answer:
Josephina runs 24 miles
Explanation:
Steve and Josephina run a total of 42 miles in a week.
Let S be the number of miles Steve runs
and J be the number of miles Josphina runs
Steve ran six fewer miles than josephina

Total miles is 42

Now we replace S with J-6


Add 6 on both sides

Divide both sides by 2
J= 24
Josephina runs 24 miles