How were slaves brought to the colonies? 2 or more sentences.

How does the pyramid of giza include art, science, math, or a need for infrastructure?

What was feudalism? (define the structure)

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.