A.)19
B.)132
C.)48
D.)21

Answer:
Hello! answer: 48
Step-by-step explanation:
3 × 19 - 9 = 48
7 × 19 - 1 = 132
48 + 132 = 180 so... 48 is the measure of ABC
Answer:
C.) 48
Step-by-step explanation:
I seem like it's multiple choice, I don't think you really need an explanation