Answer:
A
Step-by-step explanation:
Notice how it points it out for the x coordinate, and the closed circle means that point is included, So it's the range of the smallest x coordinate to the greatest x coordinate.
Answer:
14/4 or 7/2
Step-by-step explanation:
6 - (-7)
---------
-3 - (-7)
When you subtract a - its really just adding
Answer:

Step-by-step explanation:
Given: E, F, G, H denote the three coordinates of the area fenced
To find: coordinates of point H
Solution:
According to distance formula,
length of side joining points
is equal to 
So,

Perimeter of a figure is the length of its outline.

Put 

This is true.
So, the point
satisfies the equation 
So, point H is
.
2 2/3 = [(2*3)+2]/3 =8/3
(8/3)/5=8/(3*5)=8/15