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1

Step-by-step explanation:

-16 + x = -15

+16          +16

x = 1 because -15 + 16 is 1

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.