Angle 4 would also be 135. the two on the top would add to 180, making a whole circle altogether that equals 360. so, you would do 180-135 = 45. angle 5 is 45. angle 7 would also be 135 because angle 4 and 7 are vertical angles.
Idk but it's 0.416667
cuz 25/60 equals so
C.6 is your answer. half of 4 is 2, and your smaller triangle is 2 and 3, half of 6 is 3.
