Find the value of x of the pic

Combine like terms to make a simpler expression 3z+z

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

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