the answer is an economic factor.
Answer:
Piankhi was the hereditary ruler of the kingdom of Cush on the Upper Nile in what is now the northSudan. About 741 B.C. he succeeded his father, Kashta, who seems to have founded this Nubian Kingdom. By this time Lower Egypt had been in full decline for almost half a millennium.
Explanation:
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she couldn't do things on her own and it was very hard to communicate with her.