If one letter is chosen at random from the word combed, what is the probability that theletter chosen will be a "d"?

Paint should be stored and mixed in an osha-approved room with all of the following, except: a) adequate ventilation b) ventilation hoods c) unshielded electrical devices d) fire extinguishers

The occupational safety and health administration requires employers to provide fall protection to construction workers who are working on surfaces with unprotected sides and edges feet or greater above the lower level.

What gpa will you get if you make all a's and 1 b?