By the mid-1500s, what had become the main economy of brazil?

a. sugar plantations
b. encomiendas
c. the exploration of brazilwood
d. the exploration of gold

Why did einstein write a letter to president roosevelt

Which statement best explains how the narrator interacts with the setting? a.the setting makes him lose hope b. the setting makes him envious c. the setting makes him feel angry d. the setting makes him gain confidence the answer is a

15 pt (more than one answer)what are some of the ways businesses increased productivity? -obtained new machinery -obtained new resources -obtained new technologies -found ways to make their workers more efficient