Write the set $F=\{x:x$ is a letter in the word $\text{'}\mathrm{MATHEMATICS}\text{'}$$\}$ in roster form

Write the set $G=\{x:x$ is a prime number and $80<x<100\}$ in roster form.

Write the set $H=\{x:x$ is a perfect square and $x<50\}$ in roster form.

 Write the set $J=\left\{x:\in R\text{ and }{x}^2+x-12=0\right\}$ in roster form.

Write the set $K=\{x:\in N,x$ is a multiple of $5$ and $\left.x^2<400\right\}$ in roster form.

List all the elements of the set: $A=\{x:x=2n,n\in N$ and $n\le 5\}.$

List all the elements of the set: $B=\{x:x=2n+1,n\in W\text{ and }n\le 5\}$

List all the elements of the set: $C=\left\{x:x=\frac{1}{n},n\mathit{\in }N\text{ and }n\le 6\right\}$.

List all the elements of the set: $D=\left\{x\mathit{:}x=n^2,n\mathit{\in }N\right.$ and $2\le n\le 5\}.$