Which of these pieces of legislation was an important step in limiting slavery?

a.) land ordinance of 1785
b.) northwest ordinance of 1787
c.) three-fifths compromise
d.) the great compromise

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b