Please help asap tyvm.

1. Compare and contrast the treatment of different religions by rulers of the arab empire.
(What two religions were tolerated by the Arab empire? How were they treated? Why were they tolerated? What happened to the religions that were persecuted?)

2. Describe the split in the Muslim community caused by Muhammad's death.
(What was the successor to Muhammad called? what are the two groups that were created after the death of Muhammad? What were their beliefs?)

3. What was Muhammad's role in establishing and spreading Islam?
(How was the Quran formed? What were the two ways that Muhammad helped spread Islam?)

If you could help me with these it would be greatly appreciated