Question

-2/3 (1/a)(b)(-1)
(125)^ =(125)^ =c


a=____
b=____
c=____

Answer 1

you want to try that again, so we can read it?
Don't put the exponents on a separate line, where they get jumbled up.
Does it start

125^(-1/3)?
If so, then since 125 = 5^3, that would be 1/5

Now clean things up and see what you can do.

Answer 2

sorry here it is again.
(125)^-2/3=(125)^(1/a)(b)(-1)=c

Answer 3

well, you have -2/3 = -b/a
so a = 3 and b = 2
Then, of course, c = 1/5^2 = 1/25