This problem requires the Pythagorean therom.
The distance between them is 7.
Since the distance between them is one more mile than ray's distance from home ray is 6 miles from home.
So rosa is
![√(7^2-6^2)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/za7frst2vdvmiswfy4fpbj31jv3jfubvi9.png)
So rosa is
miles away from home.
Rosa is about 3.6 miles from home.