Did sumarians have an advanced economy relative to their time and place

No they did not have an advanced economy.

Explanation:

The sumerians did have great wealth though because they moved to the Fertile Crescent which gave them farmland and they also had trade routes.

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.