Radical to exponent conversions practice

Which expression is equivalent to $\sqrt[4]{a^8 b^{12}}$, where $a$ and $b$ are positive?

Which expression is equivalent to $\sqrt[5]{m^{10} n^{15}}$, where $m$ and $n$ are positive?

Which expression is equivalent to $\sqrt{x^{10} y^8}$, where $x$ and $y$ are positive?

Which expression is equivalent to $\sqrt[7]{x^9 y^9}$, where $x$ and $y$ are positive?

Which expression is equivalent to $\sqrt[7]{r^{21} s^{14} t^7}$, where $r$, $s$, and $t$ are positive?

Which expression is equivalent to $\sqrt[3]{u^{15} v^9 w^6}$, where $u$, $v$, and $w$ are positive?

Which expression is equivalent to $\sqrt[4]{a^5 b^6}$, where $a$ and $b$ are positive?

Which expression is equivalent to $\sqrt[5]{x^8 y^{12}}$, where $x$ and $y$ are positive?