cuz that line is 180 degrees and using algebra you can subtract 54 from both sides and get 126 then u have to subtract the 36 from both side to geth 90 and then divide the 3x to get x by itself which would leave u with 30 so x=30
B is correct. Explanation Below: --- Line A never intersects Line B, as they are parallel lines-the slopes are the same-and parallel lines never intersect. Line A's Slope: (9-5)/(-1-1) = -2 Line B's Slope: (-6-2)/(4-0) = -2 --- Hope this helps!