What was the primary reason for slavery in the southern American colonies?

The Southern economies depended upon slaves at plantations to provide labor and keep the massive tobacco and rice farms running.

Explanation:

Brainliest Please!!

well michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers so yeha lol

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;