$\"\"$ \ \

The list is $\"\"$

Observe the pattern; the difference between consecutive numbers is 4.

$\"\"$ \ \

$\"\"$

Let n= the next term.

Write an equation for the situation.

$\"\"$ .

$\"\"$ (Substitute: $\"\"$ )

$\"\"$ (Add: $\"\"$ )

The extended pattern is,

$\"\"$

The next term in the given list is 24.

$\"\"$

The next term in the given list is 24.