Which is the most accurate description of songhai under askia muhammad?
a powerful empire that grew wealthy trading with the people of the swahili coast
a powerful trading empire that stretched from the atlantic ocean across much of west africa
a small kingdom on the niger river that owed allegiance to mali
an empire whose capital city of kilwa was a center of islamic culture and learning

A powerful trading empire that extended from the Atlantic Ocean across much of West Africa  is the most accurate description of Songhai under Askia Muhammad.

Explanation:

In 1493 the ruler of the Songhai was Askia Muhammad. The Songhai Emperor was taken to his heights and the Askia Empire was founded. Askia was a committed Prophet, Muhammad. Islam became a big part of the empire during his leadership.

Songhai's most detailed depiction under Askia Muhammad was a vast business empire covering much of Western Africa on the Niger River from the Atlantic.  

Askia Mohammed was emperor, army commander and political statesman of the Songhai Empire by the late 15th century. He was a committed Muslim, where Islamic became a central part of the Empire during his leadership. He could occupy many of the nearby areas and manage the Malian Empire's salt and gold markets.  

At its height, the Kingdom of Songhai reached more than 1,000 miles from today's Nigerian nation to the Atlantic.

the answer is b. hope this !

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion