How did lewis, clark and sacajawea assist the united states

They crossed through Montana and made their way to the Continental Divide via Lemhi Pass where, with Sacagawea's help, they purchased horses from the Shoshone. While there, Sacagawea reunited with her brother Cameahwait, who hadn't seen her since she was kidnapped

c

explanation:

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.