How did Kievan Rus develop in the 9th century and in what ways was it influenced by the Byzantine Empire instead of Western Europe?

Viking Oleg was the founder.

Explanation:

Viking Oleg was the founder of Kievan Rus who established the empire in 9th century. The Kievan Rus was a powerful empire which is founded around the city of Kiev during the Middle Ages. Kievan Rus influenced by the Byzantine Empire instead of Western Europe because the Rus was dependent on  Byzantine Empire for their existence in the region and they have the artery of trade which connects the Rus with the  Byzantine Empire.

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.

4 copper and gold, the california gold rush is why im pretty sure.