Question

how would fdrs court - packing scheme have changed the supreme court?
it would have put more democratic justices on the court.
it would have removed the four horsemen who were opposing the new deal from the court.
it would have expanded the court by allowing the president to appoint new justices when existing justices turned 70.
it would have forced the court to approve pending new deal legislation.

Explanation:

FDR's court - packing scheme (Judiciary Reorganization Bill of 1937) aimed to add new justices to the Supreme Court when existing ones turned 70. This would expand the Court's size as the president could appoint new justices in such cases, which matches the selected option's description. Other options: "put more Democratic justices" is incorrect as the scheme was about adding based on age, not party - only; "remove the Four Horsemen" was not the direct goal (the scheme was to add, not remove); "force the Court to approve pending New Deal legislation" was a potential effect but not the direct change to the Court's structure like expansion.

Answer:

It would have expanded the Court by allowing the president to appoint new justices when existing justices turned 70.