A=42
C=90
B=48
We can reason that C will be equal to 90 since it is the right angle. So to find B we have to subtract 90 from 180 to get 90 then subtract 42 to get 48
B=48 degrees
Evaluate?
What’s the full question?
Answer:
1, 2, 8, 128, 32768
Step-by-step explanation:

Thus the first five terms are: 1, 2, 8, 128, 32768.