The volume of a can can be determined by the equation
Volume = Area x Height
Volume = 40cm^2 x 12cm = 480cm^3
The answer is A. Sound can travel through matter (solids, liquids, and gases). Sound travels faster in solids, then slower in liquids and slowest in the air. When the person in the next room makes noise, the sound travels through the air in their room, through the solid wall and in the air in your room and into your ear.
