How were the lives of free african americans similar to those of enslaved african americans in the 1700’ ?

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s

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.

Energy is the total kinetic energy of particles of matter.(chose wisely & pick one) a. mechanical b.thermal c.electrical d.chemical