Transitions help your argument flow smoothly and without them you could lose and confuse your audience. Hope that helps
The answer is true, horses were treated better than slaves during that time.
Try not to think about the people in the crowd as much, they might say some stuff here and there, but it won't matter. You should worry more about what the teacher grades you based on what you say.
Answer:
About 12.5 million slaves were transported from Africa during the time of the Atlantic Slave Trade, from around 1526 to 1867, and 10.7 million arrived in the Americas. Of all long-distance world migrations, the Atlantic Slave Trade was perhaps the most expensive trade in human civilization.
