18. 
An underground chamber has been discovered in an old mansion. The chamber is thought to have been used for storing ammunition. The dimensions of the chamber are 14 feet by 6 feet by 6 feet. An old ammunition crate was also found in the chamber and it had dimensions of 1 foot by 1 foot by 2 feet. What is the maximum number of ammunition boxes of that size that could be put in the underground chamber?


19. 
A pillar from an ancient city was found buried in the ground. It had a crosssectional shape like that shown in the figure. If the area of the cross section is fourteen and four hundredths square meters, and the pillar was twentytwo and two tenths meters tall, what was the total volume of stone contained by the pillar?

