A roofer shouldn't charge by the hour he should charge by the square. In a square their is 100 sq.ft and they usually charge $300 per square. roofer shouldn't charge by the hour he should charge by the square. In a square their is 100 sq.ft and they usually charge $300 per square.
In the United States, the certified nursing assistant (CNA) typically works in a nursing home or hospital, and performs everyday living tasks for the elderly, chronically sick, or rehabilitation patients who cannot care for themselves.
A certified nursing assistant, or CNA, works under the supervision of nurses to deliver high quality care to patients.The job requires long hours and many responsibilities, but caring for patients on a daily basis provides some of the greatest rewards any profession could offer. certified nursing assistant, or CNA, works under the supervision of nurses to deliver high quality care to patients.