Answer:
81 times m to the fourth power over n to the fourth power
The answer will be 81 times m to the fourth power over n to the fourth power so option (A) will be correct.
The ratio is the division of the two numbers.
For example, a/b, where a will be the numerator and b, will be the denominator.
Proportion is the relation of a variable with another. It could be direct or inverse.
Given that
3 times m over n all raised to the fourth power
⇒ [tex][3(m/n)]^{4}[/tex]
By indices rule that (mn)² = m²n²
⇒ 3⁴ × (m/n)⁴
⇒ 81 × (m/n)⁴ so 81 times m to the fourth power over n to the fourth power will be the correct answer.
For more information about ratio and proportion
brainly.com/question/26974513
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