Why were the Greensboro sit ins so successful

Explanation:

The sit-in movement soon spread to college towns throughout the South. Though many of the protesters were arrested for trespassing, disorderly conduct or disturbing the peace, their actions made an immediate and lasting impact, forcing Woolworth's and other establishments to change their segregationist policies.

Because it was serving Black Patrons

the supreme court can hear any case it wishes as long as four justices agree to hear it.

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the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.