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Answer :

Let:

n = Total number of bolts = 56

Wb = Weight of each bolt = 7.47 oz

T = Total weight

The total weight will be given by:

[tex]\begin{gathered} T=n\cdot Wb \\ T=56\cdot7.47 \\ T=418.32oz \end{gathered}[/tex]

Answer:

All bolts weigh 418.32 oz together