A researcher is studying the effects of alcohol consumption on driving ability. In this experiment, alcohol consumption is the independent variable.
You could do it manually or use an operating machine hope this helped
Answer:
B is my guess not positive though maybe wait for someone else to back me up on it
Answer: He should of used the heel of his hand instead of using his fist.
Explanation: Using the heel of your hand is better than using your fist while doing a compression because this allows you to apply more pressure.
