$\"\"$ \ \

compound inequalities:

A compound inequality that contains and is true if and only if both individual inequalities are true,

The inequaliies are $\"\"$ , $\"\"$ and $\"\"$ , $\"\"$ and $\"\"$ and $\"\"$ and $\"\"$ .

Each of these has a non-empty solution set except for $\"\"$ and $\"\"$ .

There are no values of $\"\"$ that are simultaneously greater than $\"\"$ and less than $\"\"$ . \ \

$\"\"$

$\"\"$ and $\"\"$ ;There are no values of $\"\"$ that are simultaneously greater than $\"\"$ and less than $\"\"$ . \ \