Backward (opposite of its normal direction) flow of a body fluid is _______

What is the purpose of algebra?

A) To calculate the answer to an equation B) To determine whether an equation fits the associated property C) To evaluate whether an equation has a fraction D) To identify the unknown value of a variable

If you suspect potential violence at an emergency scene, you should:

A) request law enforcement assistance before entering the scene. B) enter cautiously and then call law enforcement if needed. C) first remove patients from the scene, and then call for police assistance. D) first secure the scene, and then begin patient assessment.