Answer:
81^(5/4)
Step-by-step explanation:
The index of the root becomes the denominator of the exponent fraction.
[tex]\sqrt[4]{81^5}=\boxed{81^{\frac{5}{4}}}\\\\=243[/tex]
1st problem: 81 5/4
2: 81 5/4
3: 243
for edge 2021(:
