Answer:
C
Step-by-step explanation:
1 AND 3 ARE VERTICAL ANGLES AND 2 AND 4 ARE ALSO VERTICAL ANGLES, MAKING THEM NOT SUPPLEMENTARY SINCE SUPPLEMNETARY IS STRIAGHT LINE.
×(2)+9×+c
2×+9×+c =
11x+c
the is c.32$&$&#&#
&&&&
the answer is D, because 30/2 is 15.