Question

express using a positive exponent

n^-7

Answer 1

(1/n)^7

Answer 2

\[b^{-n}=\frac{1}{b^n}\]

Answer 3

so yes you could write
\[(\frac{1}{n})^7\] or just
\[\frac{1}{n^7}\]

Answer 4

ok

Answer 5

again correct.