Severe pain that comes in waves may be caused by kidney stones. Trauma to the body wall, hernias, and shingles can also cause lower abdominal pain.
I believe that it creates shocks to try and start the heart up again after a heart attack. (why the sticky pads are put with the heart in the middle)
The answer is 20 minutes. You must have 20 minutes of cardio each day to have an effective cardio exercise.
The answer would most likely be B
Because her friends are altering and affecting her decision