Answer:
1:C
2:B
3:D
Step-by-step explanation:
To solve these questions you need to know the exterior angle theorem.
1: 8x+2+9x+6=110
17x+8=110
17x=102
x=6
2: 30+98=?
so 128
3: 9x+11+9x+5=124
18x+16=124
18x=108
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