0.56 gm/ml is the density of a piece of tempered glass.
Explanation:
In the question the formula for density have be given , that is, density= mass/ volume. The value of mass as well as the volume has been provided in the question, they are the value of mass is 2.8 gm and the value of the volume is 5 ml. Putting the value of mass and the volume we get 2.8/5= 0.56 gm/ml . Hence, the density of a piece of tempered glass is 0.56 gm/ml.
A.
Some conditions that might have led Samuel's decision to commit a crime could've been students picking him, making fun of him, bullying him. Anything that had to do with other students acting negative to Samuel is what I think is the reason Samuel made this decision.
B.
There's a bunch of things that could've been done to help Samuel. Such as discussing the issue to his parents or sibling, telling the principal what the problem was, etc. Samuel would just need someone to talk to about what was going on, this would probably help him. <em>"Were there signs at school or home that he was at risk? </em><em>I don't understand what this means sorry.</em>
C.
There are barely any at my previous school that I used to attend. Some additional measures that would need to be added would be weapon, drug, etc., detected doors, staff members checking students' bags, etc.
