What are some other ways colonists could have accomplished their goals without the use of slaves

They could have used spare time to invent and create a new system or procedure. By doing this they could have maybe come up with a different type of system that would benefit everyone including the Africans.

hope this helps :)

a free market economy requires less state intervention. concurrently, it often requires a degree of democratisation of its institutions which- to a certain extent- facilitates economic activity. at the same time, a free market economy appears to be reliant on democracy for its functioning.

e imma say squidward tentacles