How did people in middle colonies (new yourk, new jersey, Pennsylvania) make money

By manufactoring items.

Explanation:

On the legend, it tells you a list of things they made. This seems like the main thing that they did was make things.

Indentured servitude was especially common in the Pennsylvania, New Jersey, and New York in the 18th century, though fewer worked in agriculture. Unlike New England, the Middle Colonies had richer, less rocky soil, allowing the area to become a major exporter of wheat and other grains.

Explanation:

it is a part of john locke's natural rights popular during the age of enlightenment that people had inalienable rights to life, liberty and property. this was reflected by thomas jefferson in his declaration of independence as rights to life,liberty and the pursuit of happiness.

another line in the declaration of independence is that people have certain rights just because they are human. humans are capable of obeying the three natural rights john locke mentioned making them governable by these laws and therefore entitled to these rights as well.