What were the strengths and weaknesses of the articles of confederation?

Why did the united states pass the neutrality acts

When top-roping is used, how long should the rope be in order to protect the climber throughout the climb?

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.