Simplify each expression. 3a^2b^-4/12a^-2b-2
a. a^4/4b^2
b.1/4b^6
c.1/4a^-4b^2
d. a^4/4b^6
second question is
v^3w^-3/-v^-6w^3
a.-1/-v^3
b.-v^9/-w^6
c.1/v^3
-v^9w^-6
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