Job Outlook. Excellent. Respiratory therapists provide care and treatment for patients suffering from breathing and cardiopulmonary difficulties. They may also provide emergency medical care for patients who have experienced asphyxiation, heart attacks, or shock.
0 is a number alone or not. if you put 0 by itself its both a number and a digit.
Similarly, 0/b = 0 for any b â  0. This is interesting. zero divided by any non-zero number is zero. This is a unique property of zero; this is equivalent to the statement that zero multiplied by any non-zero number is zero.