Subsets

If $\mathrm{A}=\{1, 2, 3, 4, 5, 6, 7\}$, then the number of proper subsets of $\mathrm{A}$ is

Find the length of interval $\left(8,32\right)$.

Find the length of interval $\left(4,26\right)$.

Find the length of interval $\left(2,14\right)$.

Find the length of interval $\left(5,16\right)$.

Find the length of interval $\left(3,21\right)$.

Write a superset of the following set.

$A=\left\{7,8\right\}$

Write a superset of the following set.

$A=\left\{6,7,8\right\}$

Write a superset of the following set.

$A=\left\{2,3\right\}$

Write a superset of the following set.

$A=\left\{2,3,4\right\}$

Write a superset of the following set.

$A=\left\{2,3,4,5\right\}$

The number of proper subsets of the set $\{1,\mathrm{ }2,\mathrm{ }3\}$ is

Write the following subset of $R$ as interval:

$\left\{x|x\in R, m\in R, x=5m \text{and} 2<m\le 5\right\}$

The set of rational numbers is subset of set of real numbers.

The set of natural number is subset of set of real numbers.

If $A=${$x|x$ is a prime number, $0\le x\le 9$}, then the number of elements of power set of $A$ is

If $A=\left\{x,y,z\right\}, B=\left\{1,2\right\}$, then the total number of relations from set $A$ to set $B$ are

The length of an interval $(-18,-24]$ is 

The length of an interval $\left(14,18\right)$ is 

Write the following subsets of $R$ as interval $:\{x:x\in R,-12<x<-10\}$.