How many waves of immigration did the us face after the civil war

Arecent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.

Imagine you are driving down the highway and reading a sign that states save the planet don't litter which technique of policy enactment is being used

Government run farms are known as a. pastoral b. collectives c. irrigation d. dalits