Answer:
what grade r u in cause I have never seen that or I would help u out
Answer:
c = 250
Step-by-step explanation:
Air? Unless you mean like a toy boat? IDK, I do know that huge ships like the Titanic are able to float because they have trapped oxygen. Think about if you're swimming; often when you hold your breath you float a bit better than if you were heavily breathing. Sorry i know its not alot to go off of, did i help you a little?