Answer:
h = 20 mean h can only be 20
h < 20 means h can only be a number that is smaller than 20, can't be exactly 20
Explanation:
h = 20
This means the variable h can only be 20; it can't be lower or higher than 20.
h < 20
This means the variable h can only be smaller than 20; this means the number can only be below 20 and can't be exactly 20.