Answer
$9$
Work Step by Step
Recall that $3^3=27$.
Thus, the given expression can be written as:
$=(3^3)^{\frac{2}{3}}$
Now, recall the basic exponent property (pg. 360):
$(a^m)^n=a^{mn}$
Applying this property to the expression above gives:
$=3^{\frac{3\cdot2}{3}}$
$=3^{2}$
$=9$
