Doing homework need help with this please.

Answer:
The value of x = 64. Hence, option A is correct.
Step-by-step Explanation:
[tex]\log _4\left(x\right)=3[/tex]
We know that the rule:
[tex]y\:=\:\log _a\left(x\right)[/tex]
can be represented as:
[tex]x\:=\:a^y[/tex]
so
[tex]\log _4\left(x\right)=3[/tex]
4³=x
x = 64
Thus, the value of x = 64. Hence, option A is correct.