Answer:
The exact value is 16.
Explanation:
Rewrite 64 as 4³ so it would be (4³)^2/3
Apply the power rule and multiply exponents, (a^m) n = a^mn, so you get 4^3 (^2/3).
Then, cancel the common factor of 3 and rewrite it so you end up with 4^2.
Lastly, you will raise 4 to the power of 2 to get the base of 16.
-A.H. [P.G]