Answer:
22.2
Step-by-step explanation:
add them
A) 22
B)125
C)55
Linear pair=180
2x+11+6x-7=180
8x+11-7=180
8x+4=180
8x=176
x=22
6500-40=6460
0.75
0, 1, 1.5, 1.8, 1.3