What society invented the architectural structures of the arch, the vault, and the dome?
chinese
egyptian
greek
roman

The Roman are the ones who invented the architectural structures of the arch, vault, and dome

Romans developed the use of concrete, so therefore roman is your answer!

- 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."

< 3

answer: your option is d

explanation: