Which of the following actions by darius strength the persian empire by encouraging trade? select all that apply.

a) set up common weights and measures

b) set up express mail delivery

c) encouraged the use of coins

d) expanded the barter economy

“i now wished for the last friend,death, to relieve me.” what is equiano referring to?

On a production possibility curve, data points that fall outside of the curve represent an inefficient allocation of resources. a balanced allocation of resources. ideal production. a currently unattainable production.

How did the united states respond when north vietnam attacked a us warship and sent troops to south vietnam in the early 1960s? a.the united states declined to assist south vietnam against the north. b.us leaders authorized south vietnam to invade north vietnam. c.the president did not sign the gulf of tonkin resolution. d.congress authorized the president to escalate the conflict.