The answer is the 9th amendment,
The concept of concurrent powers responds to the fact that many actions are necessary to serve the people at both the federal and state levels. Most notably, the power to impose and collect taxes is needed in order to raise money needed to provide police and fire departments, and to maintain highways, parks, and other public facilities.
Vladimir, the great Grand Prince of Kiev was known for a) After sending out men to investigate various religions, he chose Eastern Orthodox Christianity as the state religion. He was actually pagan previously.
Answer:
Because he supported the freedom of slavery and the people in the south still wanted to keep their slaves
Explanation:
