When did modern agriculture came into practice?

Explain the diversity of race in latin america

Alimitation on the president’s power to appoint ambassadors is that

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.