What slavery law was established in 1857 by the dred scott decision? slaves traveling in free states remain enslaved. slaves traveling in free states are considered free citizens. free states must provide settlements for runaway slaves. proslavery states must provide settlements for runaway slaves.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

answer; ///i believe that the correct answer is ; hieroglyphs or glyphs; the maya script, also known as maya glyphs, was the writing system of the maya civilization of mesoamerica; as always plz check first..good luck