Which of the following involves a specific number of voters petitioning to get a constitutional amendment on the ballot for approval by the voters in a referendum?

In the United States, both financial and labor markets are _____

a. elastic b. inefficient c. redistributive d. unprofitable

The best-known liberal-leaning "think tank" in Washington, D.C. is the

a. Cato Institute. b. Heritage Foundation. c. Brookings Institution. d. Council on Foreign Relations. e. International Institute of Economics.