Question

please give me answer if you give the answer I will mark you as the brainest
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Answer 1

1) x^(2)*y^(-6)*z^(0)/x^(-4)*y^(-2)

 = x^(2)*x^(4)*y^(2)/y^(6)

= x^(6)/y^(4)

2) (a^(-4))/(b^(5)a^(4))

= 1/b^(5)a^(4)*a^(4)

= 1/b^(5)a^(8)

NOTE:

* means multiply , ^() means power