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 Nurse Assistant, or CNA, is also known as a nursing aide, nurseâs aide, or orderly. CNAs typically work under the supervision of a nurse or other licensed healthcare provider. Some CNAs also work as home health aides.