1. they harvest crops together
2.make clothes
3. take care of children
Answer
4 and 5
Explanation
A constant term in an expression is a term that does is independent of any variables. This means that constant term will have non of the variables 
attached to them. In the expression 
we notice that the terms integers 4 and 5 are the only terms that are not coefficients of any of the variables in the expression.
Answer:
Southerners otherwise known as the Northern Song Dynasty.
Explanation:
They committed late to the Mongolian empire so they are lowest in class.
Communism is at the back door of USA.
ICMBS could easily hit D.C..
