The answer is x=6 and y=4.
6+4=10
and 8 times 6 + 12 times 4 is 96.
4th one. its simple math bro
The 2 lines are parallel, so the 2 sides(e.g. 1 and 2/ 3 and 49) add up = 180 and In this case the 2 sides are equal as u can see from the original diagram so the angle of 2 is 180-49=131.