The image asks, "What would $x$ to the power of $-3$ equal?"

To solve $x^{-3}$, we apply the rule of negative exponents, which states:

$x^{-n} = \frac{1}{x^n}$

So:

$x^{-3} = \frac{1}{x^3}$

Thus, the correct answer is:

$\boxed{\frac{1}{x^3}}$

Would you like more details or have any questions?

Here are 5 related questions:

1. What is $x^{-2}$ in simplified form?
2. How would you express $2^{-4}$ as a fraction?
3. What is the value of $10^{-1}$?
4. Can a negative exponent result in a negative number?
5. What is the general formula for $x^{-n}$?

Tip: Negative exponents indicate reciprocal values. For example, $x^{-n} = \frac{1}{x^n}$.