A small bar of gold measures 40mm by 25mm by 2mm. One cubic millimeter of gold weights about 0.0005 ounces. Find the volume in cubic millimeter and the weight in ounces of this small bar of gold?

Hank has cards that are 8 inches by 4 inches. A stack of these cards fits inside the box shown and used up 32 cubic inches of volume . How tall is the stack of card? What percent of the box's volume is taken up by the cards?

A typical stone on the lowest level of the great pyramid in Egypt was a rectangular prism 5 feet long by 5 feet 5 feet high by 6 feet deep and weighted 15 tons. What was the volume of the average stone? How much did one cubic foot of this stone weight?