How did the friedman’s bureau african americans economically?

The Freedmen's Bureau helped African Americans economically by helping to negotiate labor contracts.

The Freedmen's Bureau was a federal agency created after the end of the Civil War to help newly freed slaves in Southern states. The goal of this organization was to help blacks transition into American society as newly freed citizens. One way in which the Freedmen's Bureau helped African American citizens economically is by helping them to negotiate labor contracts. This ensured that African Americans were compensated for the work they did, especially on plantations.

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