Write the following in set-builder form and roster form:

The first $5$ multiples of $6$

Write the following in set-builder form and roster form:

State which of the following pairs are equal sets or equivalent sets.

State which of the following pairs are equal sets or equivalent sets.

$E=\{x:x$ is an even natural number till $10\}$
$\mathrm{O}=\{\mathrm{x}:\mathrm{x}$ is an odd natural number till $10\}$

State which of the following pairs are equal sets or equivalent sets.

$X=\{x:x$ is letters of the word ATLEAST$\}$
$\mathrm{Y}=\{\mathrm{x}:\mathrm{x}$ is letters of the word STEAL$\}$

State which of the following pairs are equal sets or equivalent sets.

State which of the following pairs are equal sets or equivalent sets.

Write the cardinal number of the following sets.

Write the cardinal number of the following sets.

$X=\{x:x$ is a $2$-digit multiple of $3$ and $4\}$