Answer
$\frac{n^3{^5}}{v^2{^1}}$
Work Step by Step
You have the expression: ($\frac{n^5}{v^3}$$)^{7}$.Simplify the expression:
($\frac{n^5*7}{v^3*7}$) -Raise the numerator and denominator to the power in order to raise a quotient to a power-
=$\frac{n^3{^5}}{v^2{^1}}$