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