Describe the changes in business practices and how they helped to fuel an economic explosion in the United States during the 1920s

The period from 1920-29 is often called the ‘Roaring Twenties’ because it was a time of noise, lively action and economic prosperity. The First World War had been good for American business. Factory production had risen sharply to meet the needs of the war. America had been able to capture markets that used to buy from Europe. Once the war was over these countries continued to buy American goods.

Explanation:

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c) troops march forward in close formation against newer, more accurate weapons

answer: a

explanation:  

stocks and bonds are the two main classes of assets investors use in their portfolios. stocks offer an ownership stake in a company, while bonds are akin to loans made to a company (a corporate bond) or other organization (like the u.s. treasury). in general, stocks are considered riskier and more volatile than bonds.

savings accounts are just money in a bank- they are insured by the fdic for up to 250,000.   very little risk

the average mutual fund holds hundreds of different securities, which means mutual fund shareholders gain important diversification at a low price. which means if one stock or bond drops it will have very little affect on the mutual fund - again very little risk