Answer:
9.25
Explanation:
∵ The coordinates of midpoint of a line segment having end points and are,
Given,
The coordinates of A are (-6, 13),
Coordinates of D are (2, 14),
If C is the midpoint of line segment AD,
Then the coordinates of C are,
Now, if B is the mid point of line segment AC,
Then the coordinates of B are,
Hence, the sum of the coordinates of B = -4 + 13.25 = 9.25