Final answer:
The subject of this question is Social Studies. It focuses on the percentage of high school students who know of someone bringing a gun to school but do not report it.
Step-by-step explanation:
The subject of this question is Social Studies. It focuses on the percentage of high school students who know of someone bringing a gun to school but do not report it.
In relation to gun violence in schools, there have been various incidents that raised concerns about the easy accessibility of firearms and the need for stricter gun control. However, the given information does not provide a specific percentage of high school students who know of someone bringing a gun to school but do not report it.
Therefore, without the specific data mentioned in the question, it is not possible to provide an accurate answer regarding the exact percentage of students who do not report incidents of guns being brought to school.