Answer:
A: 32, B: 18
Explanation:
For A, we multiply 8 by 8 (8 to the second power). From that, we get 64, now, we put that over 2, so now we have 64/2. We can simplify this, though, just divide both numbers by two to get 32/1, or just 32. For B, we know that x=6, so we put that in the equation, 30 - (2x6). We can simplify that to 30 - 12. When we solve this, we get 18. I hope this helps!