How were slaves an important part of the success of Colonia l America?

They were able to build the economy

Explanation:

Colonial America depended on cotton. So slave were able to help them improve their economy.And by helped, I mean forced to partake in unwilling labor. However, this does not mean that they were right in doing this.

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time