She used the associative property which should only be used with positive numbers (sorry if it isn't the answer you're looking for)
(x^1/2 y^-2/3)^-6
= x^(1/2*-6) y^[(-2/3) *(-6)]
= x^-3 y ^4
= y^4 / x^3
answer is D. y^4 / x^3
Answer:
100
Step-by-step explanation:
-867, -145, -12.1, 12110
Note that a negative number converts a number to a very small number..
