How did Leonin use plainchant to create organa?

answer: what is the question?

explanation:

id say bottom left to top top left to bottom right and middle to middle

explanation:

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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