As far as I am concerned Gao was not one of the Songhay Empire's major ones but I bet two answers should be acceptable in this question. I also think that you can include the third option from the scale represented above because <span>Algiers were quite far away on north so they couldn't be the part of the Songhay. </span>
So that way they didnt have to keep taking longer trips to get waterr
The Great Compromise of 1787 was a meeting about issues in the government and how they were going to be set up properly. This resolved the issue of representation in government and ended up agreeing on proportional government for the upper and lower house.