My people who already did the staar test are doing staar test 2019 ? And say how do you know

This is an ap world history question. i am working on a worksheet which has a vent diagram with each circle labeled either us or byzantine economy. the middle is the similarities. can someone explain to me the similarities and especially the differences between the two?

The medium that carries message signals from senders to receivers of communication is

Submitting the profile which includes sending a report to one college cost