Why is a social contract important to the enlightenment view of government

What event started the space race and made americans feel their security was threatened a.) alan shepard's suborbital flight. b.) the launch of sputnik c.) the launch of explorer d.) the cuban missle crisis

Which of these is an edge city? boston, ma chicago, il irvine, ca detroit, mi

Who coined the phrase “go west and grow with the country”?