Which company built eastward across the mountains?

A. Central Pacific
B. Union Pacific

A

Explanation:

The pacific railroad act sipulatee that the Central Pacific Railroad company would start building in Sacramento and continue east across the Sierra Nevada.

A. Central Pacific

Sana nakatulong:)

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.