Answer:
8.25
Explanation:
Question 2 will assist the answer to question 1.
You can calculate the horizontal and vertical lengths of two coordinates by subtracting the smallest x coordinate by the largest, doing the same for the y coordinates too:
(-3, 5) (5, 7)
5 - (-3) = 8, the width of x
7 - 5 = 2, the height of y
To calculate the distance between two coordinate sets, use the following formula:
x,y =

Where x1 and y1 are the coordinates of the first set and x2 and y2 are the second set.
Now plug the values in:



= 8.25
Hope this helps!