Final answer:
Under the Articles of Confederation, Congress had the power to mint money, enforce laws against counterfeiting, operate post offices, and set up a copyright and patent system.
Step-by-step explanation:
Congress, under the Articles of Confederation, had several rights regarding currency. Section 8 Clause 5 gave Congress the power to mint money and set its value. However, this power was later transferred to the Federal Reserve Bank. Clause 6 allowed Congress to make and enforce laws against counterfeiting. Clause 7 granted Congress the power to create and operate post offices and build roads to connect them. Finally, Clause 8 gave Congress the power to set up a copyright and patent system.