This conjecture is false, A and C don't have to be complementary angles.
Let Angle A be 100 and Angle B be 80 degrees. They are supplementary (sum of 180).
Let Angle C be 100 and Angle B is still 80 degrees. They are supplementary.
However, Angle A and Angle C are not complementary (sum of 90).
Im not sure what your asking add more please
Answer:
c may be the correct one l am 55% sure
Step-by-step explanation:
a || b,
m+125=180° ( straight angle)
m= 180-125° =55°
Two less than 5 times a number is 9
