The correct answer is not a Congressional joint power Approves or rejects international treaties, this power belongs to the Senate.
The Powers to Congress are around 66, it includes many different topics. Accordingly to the Articles of the Constitution as:
Collect taxes- "To lay and collect taxes, duties, imposts, and excises, to pay the debts and provide for the common defence and general welfare of the United States; but all duties, imposts and excises shall be uniform throughout the United States:" Art. I. Sect. 8. Cl. 1.
Naturalizes citizens- "To establish an uniform rule of naturalization, […]" Art. I. Sect. 8. Cl. 4.
Maintains the military -"To declare war, […]" Art. I. Sect. 8. Cl. 11.; "To raise and support armies, […]" Art. I. Sect. 8. Cl.; To provide and maintain a navy:" Art. I. Sect. 8. Cl. 13.; "To make rules for the government and regulation of the land and naval forces:" Art. I. Sect. 8. Cl. 14.