I believe it might be the third quadrant?...
Answer:
C
Step-by-step explanation:
Since the two trapezoids are similar, you could solve by doing a proportion: 12/20=X/25
You should end up with an answer of 15 (B)
The second equation would be correct if x = 4.
6x / 8 = 3 6 x 4 = 24 and 24 / 8 = 3