You just need to use a variable name to represent the number of points and make it greater than 100.
Use x as the number of the variable, then x has to be greater than 100.
In mathematical language you use the signs >, ≥, < and ≤.
> means greater than
≥ means greater than or equal to
< means less than
≤ means less than or equal to.
Here you need to state that your variable x is greater than 100, that is
x > 100.
That is inequality you wanted.
Answer: x > 100