1. C. 49+17
2. B. 79+16
3. A. 24 X 32
4. C. 17 X 27
Answer:
48 degrees
Step-by-step explanation:
7X-1+12x+48=180
19x+47=180
19x=133
x=7
7(7)-1=A
49-1=A
48=A
A is 48 degrees