1. Which statement correctly identifies the error in the calculation $x^0 = 0$?
2. Simplify the expression $(8x)^0$ without using zero exponents, assuming $x \neq 0$. $ \_\_\_ $
3. Evaluate the expression $(-17)^0$. $ \_\_\_ $
4. The property $a^0 = 1$ for any non-zero number $a$ is a logical consequence of which exponent law?
5. Calculate the value of the expression $12 + (4y)^0$, assuming $y \neq 0$. $ \_\_\_ $
6. For the expression $(x-3)^0$ to be equal to 1, what value must $x$ NOT be?
7. What is the value of the expression $-5^2$? The answer is ___.
8. What is the value of $(-3)^3$?
9. Which statement correctly compares the values of $-4^2$ and $(-4)^2$?