What did the court case McCulloch v. Maryland prove?

When early settlers began to move north, they moved north of the 49th parallel. puget sound. seattle. the columbia river.

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay

Which of these events was a severe setback for the u.s. war effort in the pacific?