PLEASE HELP!! I’ll mark brainliest!

Answer to question Number 1: Map of the Byzantine Empire Countries today that were once a part of it: Turkey, Greece, Italy, Some of Spawn, Libya, Egypt, Israel, Cyprus, Bulgaria, Syria, Morocco.

Answer to question Number 2: Byzantine Greek language

Byzantine Greek language, an archaic style of Greek that served as the language of administration and of most writing during the period of the Byzantine, or Eastern Roman, Empire until the fall of Constantinople to the Turks in 1453.

Explanation:

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."