1. What practice did a number of Americans participate in during the 1920’s that will hurt them once the stock market crashes? A.) Savings
B.) Checking
C.) Margin Buying
D.) paying in cash

C

Explanation:

Margin Buying is literally taking loans, which causes people to not save money and to always be in debt. So, that was the downfall of the economy at that time. (hope this helps :3)  

ok, so basically your gonna start with 350 ok. so there's 60 seconds in a minute so that means you he can go up 10 ft per minute. soo, after 3 minutes he should be at 260 ft after three minutes : )

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