A shipping container is in the shape of a right rectangular prism with a length of 9.5
feet, a width of 8 feet, and a height of 6.5 feet. The container is completely filled with
contents that weigh, on average, 0.65 pound per cubic foot. What is the weight of the
contents in the container, to the nearest pound?

321 pounds

Step-by-step explanation:

First we find the volume of the container, and then multiply this volume by the weight density (0.65 pound per cubic foot).  This results in the weight of the contents of the container.

The volume of a right rectangular prism is V = (length)(width)(height).  Here, with length 9.5 ft, width 8 ft, and height 6.5 ft, the volume works out to

494 cubic feet.

Multiplying that by (0.65 pound / cubic foot), we get the final result

(494 cubic feet)        0.65 pound

* = 321 pounds (to the nearest pound)

             1                    1 cubic foot