8.
{x/x is an odd number after 20 in the number line
9.
{x/x is an even number before 15)
10.
{x/x is an odd number > 15 and <25)
11.
{x/x is an odd number between 15 and 20%
12.
{x/x is an even number > 30
please answer this i need some answer because I exam​