What is the value of the expression? 92÷(−3)0−273​27​81

For this case we have the following expression:
 [tex] \frac{9^2}{(-3)^0} [/tex]
 The first thing you should know for this case, is that by power properties we have:
 Every number raised to zero is equal to unity.
 We then have to rewrite the expression:
 [tex] \frac{81}{1} [/tex]
 [tex]81[/tex]
 Answer:
 The given expression is equal to:
 [tex]81[/tex]
 option 4.