After Congress has approved a proposed amendment to the Constitution, what then must take place before that amendment becomes law?
The president must approve it.
Three-quarters of the states must approve it.
The Supreme Court must approve it.
Halt of the states must approve it.

porter is writing economic history because he is focusing on the cost of developing vaccines.

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period

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explanation:

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