A square pyramid has a heighth and a base with side length b. The side lengths of the base increase by 50%. Write a simplified expression that represents the
volume of the new pyramid in terms of b and h.
An expression is

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample