Question

Choose the correct simplification of the expression 3b/a^-2

Answer 1

since I don't see much there to simplify, I'll only provide a hint..

\[\LARGE \frac{1}{x^y}=x^{-y}\]
and vice versa...
\[\LARGE \frac{1}{x^{-y}}=x^y\]

Answer 2

They want you to get rid of \( a^{-2} \) in the denominator. The rule (as posted by Kreshnik) is "if you move the term to the top, multiply its exponent by -1"
The exponent is the small number to the upper right