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.
Education Overview. Federal and state laws require any aspiring certified nurse assistant (CNA) to complete an approved postsecondary training program. Vocational schools and community colleges offer programs that include classroom education and a clinical rotation.ducation Overview. Federal and state laws require any aspiring certified nurse assistant (CNA) to complete an approved postsecondary training program. Vocational schools and community colleges offer programs that include classroom education and a clinical rotation.