To find the exponent \( x \) that makes the two expressions equivalent, we need to set up the equation based on the expressions provided:
\[ (3^3)^x = 3^{24} \]
Using the exponentiation rule \( (a^m)^n = a^{m \cdot n} \), we can simplify the left-hand side:
\[ 3^{3x} = 3^{24} \]
Since the bases are the same, we can equate the exponents:
\[ 3x = 24 \]
Now, solve for \( x \):
\[ x = \frac{24}{3} = 8 \]
So, the correct exponent \( x \) that makes the two expressions equivalent is:
8