How did american industrial leaders accumulate wealth during the late 1800s? a) by inventing new technology b) by developing new farming techniques c) by using mainly slave or forced labor d) by creating monopolies and establishing trusts

- 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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hi huh