Answer:
Explanation:
ignore the text n focus on the coordinates (3, 15) and (18, 2) and that "the architect wants to place a window in the center of the wall containing these two points."
so the window will be right in the middle of (3, 15) and (18, 2).
take the average of the coordinates: (3+18)/2=10.5 n (15+2)/2=8.5
ans is B. (10.5,8.5)