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 CNA needs to have certain skills in order to do his or her job. These include helping with patientsâ medical apparatus, providing help in feeding and bathing the patients, checking vital signs, and helping them with basic health care needs.he demand is high for qualified CNAs even in this time of global recession and economic failure. To become a Certified Nursing Assistant, youâll need to be trained and pass the CNA test. Generally, training courses to become a CNA and the requirements of the course are different, depending on what state you live in.