Answer:
Step-by-step explanation:
PEMDAS
P-parenthesis, E-exponent, M-multiply, D-divide, A-add, and S-subtracting.
Exponent rule:
Subtract by the exponent from left to right.
256 is the correct answer.
I got 23 so I am not sure sorry
Answer: 58, 122
Infinitely many, because if you simplified the right side, it would equal the left side.