Answer:
im not very smart but i think b or c
Explanation:
The density, of a substance is its mass per unit volume. basically is mass so its one of the two. i hope i helped! <3
Probably. If things get worse, you should check a doctor
Answer:
It was meh
Explanation: i had a stomach ache and it was very horrible food there but i read a lot of books so that made it better