Jim is filling his rectangular pig trough full of slop. The trough is 3 ft wide, 8 ft long, and has a depth of 4 ft. One of the piglets jumps in the trough and the slop rises 2.8 inches. What is the volume of the trough?

To compute for the volume of the trough, use the formula:
\(Volume = L \u00D7 W \u00D7 H\)
\(Volume=8ft \times 4ft \times 3ft= 96ft^3\)

The information about 2.8 inches rise in slop is unnecessary because you are asked to find the volume of the trough, not that of the slop.
Be careful to be aware of, and discard, any irrelevant information given in test questions.