How did the decisions of john marshall and the supreme court strengthen the power of the ferderal government?

Made the federal courts and independent and equal branch of the United States government. The important decisions were:

Marbury v. Madison

McCulloch v. Maryland

Gibbons v. Ogden

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.

i would say your answer is a)

sorry if im wrong