PLEASE HURRY How does the idea of the domino theory relate to the spread of communism? It was employed by pro-communist countries to spread communism around the
world little by little.
It was used by anti-communist nations to oppose the spread of communism in
one country at a time.
It was the idea that if one nation fell to communism, others would soon follow
the example.
It was the belief that communism would naturally spread as workers united in
different countries.

answer; (a) he was a u.s senator for 38 years;

the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!

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.