Final answer:
To simplify log₄(5)⁹ using the power rule, we can rewrite the expression as 9 * log₄(5) which becomes approximately 17.397.
Step-by-step explanation:
To simplify log₄(5)⁹ using the power rule, we can rewrite the expression as 9 * log₄(5). Now, let's evaluate log₄(5):
log₄(5) = log(5) / log(4) ≈ 1.161 / 0.602 ≈ 1.933
Therefore, log₄(5)⁹ ≈ 9 * 1.933 = 17.397.
So the answer is not listed among the given options.