6 is two breaths because for every thirty pumps you do in CPR you do two breaths. 11 is CPR as CPR is done to pump oxygen into thr brain so that when the AED comes, there is not brain damage, as the brain would be damaged if it does not have enough oxygen.
B. Hypocalcemia
Hopefully that helps you
May be considered average
70% of your body is water
They speed up your heart rate and get your body loosened up for further exercises
