Answer:
729
Step-by-step explanation:



x=27²=729
Answer:

Step-by-step explanation:






The answer would be C
7/9 = 0.77777778
Consider the given equations:
The first equation is as:

So, 
= 
Multiplying the given fractions, we get as
= 
Now, consider the second equation as:

Multiplying by '3' to both the sides of the equation, we get


So, the number which best completes both the equations is
.