Which of the following actions by darius strengthened the persian empire by encouraging trade select all that apply (2 answers)

a) encouraged use of coins
b) set up express mail delivery
c)set up common weights and measures
d) expanded the barter economy

Ineed a example for this test plz reflect on your decisions in the cases of hazelwood v. kuhlmeier and t. m. v. state of florida using the following questions: did your opinion reflect the majority or minority opinion on each case? did you tend to favor loose or strict interpretation of the laws and rights for each case? what factors most influenced your decision and interpretations in each cas