Answer:
5 block away.
Explanation:
First, we need to find the cordinates of both points. First, we find Tanya. Tanya is 1 blocks south (Down) of the 4th station. That would be the point (-2,-2). Her friend lives north (up) of the 7th stop by 2 blocks. We then need to get the distance formula (I can't put it on here, search it up) So, we would add 3+2 to get 5. -2 plus 2 is 0, so there is nothing. 5 squared is 25.
The square root of 25 is 5. They are 5 blocks away.