Answer:
3 miles.
Step-by-step explanation:
Given that Kathy walks 3/4 mile every day.
[tex]\frac{3}{4}mile = 1 day[/tex]
Let's multiple it by 4.
[tex]\frac{3}{4} (4)[/tex]
Find common factor of both 4 to simplify, so of course 4.
[tex]\frac{3}{1} (1)[/tex]
Multiply across and the number should be 3! Hope that helped