Could you check these pleas? Firewood usually sold by a measure known as a cord. A full cord may be a stack 8x4x4ft or a stack 8x8x2ft

10. what is the volume of a full cord?
8*4*4=(128ft)

11. A short cord or a face cord of wood is 8x4xThe lenght of the logs. What is the volume of a short cord of 2 1/2ft logs?
8*4*2 1/2=(80ft)

12. If you have an area that is 12ft long and 2ft wide in which to store your firewood, How high will a stack be if it is a full cord of wood?
12*2*2=(48ft)

See:

http://www.jiskha.com/display.cgi?id=1283907100