It's on the article that comes with it. I had that assignment too.
The walls of Benin city and the other Hausa city states contribute to their development ans success because it <span>protected people and made merchants feel safe</span>
Answer : I believe it was 10%
I hope I can help you :)
Have a good day :)
One of the most important inventions of the Sumerian's was Irrigation<span> </span>