How Pyramids Were Constructed and Their Purposes Discussion

Help me study for my History class. I’m stuck and don’t understand.

Directions:
only information from the assigned text, notes, and discussions are acceptable in writing your responses.
You have to write an essay for each topic.
Topics:
1- Explain how pyramids were constructed, and for what purposes.Include data about the mummification process within the response.
2- Discuss the accomplishments of Alexander that signified the successes of Hellenism.