Answer
(a) to D
(b) to A
(c) to B
(d) to C
Work Step by Step
The matches are:
(a) to D
$(\frac{8}{27})^{2/3}=(\frac{2^3}{3^3})^{2/3}=(\frac{2}{3})^{2}=\frac{4}{9}$
(b) to A
$(\frac{8}{27})^{-2/3}=(\frac{2^3}{3^3})^{-2/3}=(\frac{2}{3})^{-2}=\frac{9}{4}$
(c) to B
$-(\frac{27}{8})^{2/3}=-(\frac{3^3}{2^3})^{2/3}=-(\frac{3}{2})^{2}=-\frac{9}{4}$
(d) to C
$-(\frac{27}{8})^{-2/3}=-(\frac{3^3}{2^3})^{-2/3}=-(\frac{3}{2})^{-2}=-\frac{4}{9}$
