Simplify : $4\times x\times 2\times y$

If $9\times x^2\times xy=k{x}^{m}y$, then find the value of $\left(k+m\right)$.

Simplification of $4x{y}^2\times 2x^{2}y$ is $k{x}^3{y}^3$. Find the value of $k$.

Simplification of $7xy\times 2xz\times 3yz$ is $k{x}^2{y}^2{z}^2$. Find the value of $k$.

If $4xy\times 2x^{2}y\times 7=k{x}^m{y}^2$, then find the value of $\left(k+m\right)$.

Simplification of $9\times xyz\times 4xy$ is $k{x}^2{y}^{2}z$. Find the value of $k$.

Simplification of $3x^{2}y\times 2x{y}^2\times 3xy$ is $k{x}^4{y}^4$. Find the value of $k$.

Simplification of $9x\times 2xy\times 3x^2$ is $k{x}^{4}y$. Find the value of $k$.

Simplification of $2x\times x{y}^2\times 3xy$ is $k{x}^3{y}^3$. Find the value of $k$.