What is a common benefit of writing and the wheel?

a. both made mathematics possible.
b. both made trade easier.
c. both allowed for city planning.
d. both were necessary for architecture.

Under president reagan, the united states began to develop the strategic defense initiative, nicknamed "star wars.” what was the goal of that plan?

Which describes what happened when anne hutchinson questioned the teachings of puritan leaders?

Which of these did the soviet union do in 1961? it built a wall through berlin to keep people from moving to the west. it used force to destroy a wall the united states had built in berlin. it convinced the british and french to merge their zones in berlin with the soviet zone. it threatened to bomb berlin if the united states did not leave within 30 days.