Ameliorate the Land Ordinance of 1785

Directions: There are two sentences. There is one missing comma and proper nouns that need to be capitalized. Grammatically correct the sentences below, in red.

The Land Ordinance of 1785 set up a system whereby settlers could purchase farmland in the undeveloped west congress at the time did not have the power to raise revenue by direct taxation so land sales provided an important revenue stream. 

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Suggested Answer:
The Land Ordinance of 1785 set up a system whereby settlers could purchase farmland in the undeveloped west. Congress at the time did not have the power to raise revenue by direct taxation, so land sales provided an important revenue stream.