Write the following as intervals :

$\{ x:x \in R, - 4\, < \,x\, \le \,6\} $

List all the elements of the following sers :

$E = \{ x:x$ is a month of a year not having $ 31 $ days ${\rm{ }}\} $

Which set is the subset of all given sets

Consider the sets

$\phi, A=\{1,3\}, B=\{1,5,9\}, C=\{1,3,5,7,9\}$

Insert the symbol $\subset$ or $ \not\subset $ between each of the following pair of sets:

$A, \ldots B$

How many elements has $P(A),$ if $A=\varnothing ?$