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$980

Step-by-step explanation:

total - 140 students

cost for each one - $7.06

so

total estimated cost = 140 × $7.06

= $980

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.