Aten foot long board is cut into 3 pieces. the second piece is half as long as the first. the third piece is 4 1/2 feet longer than the second piece. how long is the first piece?

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.