Answer:
1. Is 22
2. is 54x
3. is 81d
Answer: C. 3
745/999=.745....
I hope this is good enough:
hope this might be useful
2⁻³² = (-2²)⁻⁶ • (2⁻⁵)⁻⁴
2⁻⁵ = (2²)² • (2³)⁻³
2⁸ = (-2⁻⁴)⁻² • (2²)⁰
1 = 2⁴ • (2²)⁻²