Gold and slaves came from west africa coast lines<span />
<span>* Victory in 1842 when the Massachusetts Supreme Court ruled in Commonwealth v. Hunt that "peaceful unions" had the right to negotiate labor contracts with employers. * In the 1840s and 1850s, most state legislatures in the North passed laws establishing a ten hour day for industrial workers.</span>
Answer: b a middle class developed
Explanation:
<span>Larger companies believed they could avoid union intervention, prevent strikes, and keep productivity high.</span>
