Which sequence is modeled by the graph below? an = one half(16)n − 1
an = 4(2)n − 1
an = 16(−2)n − 1
an = 16(one half)n − 1

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

The following question asks about one or more selections from your literature textbook. you may use your textbook to answer this question. both “lob’s girl” and “jeremiah’s song” contain flashbacks. in a paragraph, explain what this plot technique adds to the stories. support your answer with one detail from each story.

What theme does don quixote's blunder about the windmill and his enthusiasm to fight the two monks he believes are "devilish and unnatural" suggest? a sense of earnest purpose can lead to impetuous behavior. true heroism fights without regard to personal expense fighting for justice inspires loyalty the average person gains by the efforts of a select few. next question ask for turn it in