The best example of recessions being close to each other in the United States can be found in the

Bella can produce either a combination of 60 silk roses and 80 silk leaves or a combination of 70 silk roses and 55 silk leaves. If she now produces 60 silk roses and 80 silk leaves, what is the opportunity cost of producing an additional 10 silk roses?

A) 2.5 silk leaves B) 10 silk leaves C) 25 silk leaves D) 55 silk leaves

In which case did the U.S. Supreme Court's review powers extend to actions by the other two branches of the federal government and not merely to the laws of the states?

(a) Marbury v. Madison (1803) (b) McCulloch v. Maryland (1819) (c) Gibbons v. Ogden (1824) (d) Dartmouth College v. Woodward (1819)