Answer:
Question #1: 17 Miles
Question #2: 10 units
Explanation:
Question #1: Here we are using the Pythareom Theorem

We must plug in the horizontal distance (x) from a to c (-4 to 4 = 8).
Then we take the vertical distance (y) from a to c (-6 to 9 = 15).
Plug it all into the Pythareom Theorem
Question 2: We do the same thing just using the new values