Muslim and jewish merchants in the indian ocean trade used what language for commerce

Why do countries create guidelines and laws on how a country is going to be run?

What impact did the gi bill and the interstate highway act of 1957 have on the development of the suburbs

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply