The triangle in the image are similar. Solve for x.
A. 7
B. 6
C. 10
D. 5

Answer:
We have GF / AB = FE / BC => 30 / (3x + 4) = 36 / 30 => 900 = 36( 3x + 4 ) =>
3x+ 4 = 25 => 3x = 21 => x = 7;
The correct answer is A.7;
Step-by-step explanation: