Could you give some examples of what you mean by "Linear inequalities"? If it's stuff like ax + b >= 0, then I have a hard time thinking of it as being at anywhere near the same level as the other topics. If it's linear programming, that's different.
For the rest, it really depends on the level you're at. For example, what a typical 17 year old has seen in the U.S. is very different from what a 17 year old in a science specialty in Eastern Europe has seen.