Prior to the arrival of europeans, what did the natives of north america have in common?
a. they had elaborate trade networks.
b. they all lived in small family units.
c. their lifestyles were entirely agricultural.
d. they lived only in coastal areas.

- 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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the answer is a) to be able to obey them.