I need an answer as fast as possible but make it right :)

porter is writing economic history because he is focusing on the cost of developing vaccines.

what precedent do you see the ordinance of 1787 setting for the 1st amendment of the us constitution : )

this person under me, copied me. owo

an era of negotiation.

is that an answer to your question?

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

***websites that me understand the curriculum better last year are and ***