Subject to approval by Congress

However, under United States constitutional law, executive agreements are not considered treaties for the purpose of the Treaty Clause of the United States Constitution, which requires the advice and consent of two-thirds of the Senate to qualify as a treaty.

Explanation:

The Constitution gives to the Senate the sole power to approve, by a two-thirds vote, treaties negotiated by the executive branch. The Senate does not ratify treaties.

general allotment act (dawes act) february 8, 1887

amendment to the dawes act, february 28, 1891

commission to the five civilized tribes (dawes commission), march 3, 1893

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )