The opportunity cost of having a study time for a test is less sleep. However if you have a test and you can't make up for it, the opportunity cost would be the lost chance of keeping up with good grades if you are maintaining a high score. On the other hand, the opportunity cost of having more sleep is less study time.
The first one is (D) jihad.
The second one is (B) Sunnis
The third one is (B) Charlemagne
The fourth one is (C) Vikings
The fifth one is (C) Ibn Sina
The sixth one is (B) Algebra
The seventh one is (C) Sahel
Hope I helped!
Because President Lincoln Was a fairly good president. Losing a president. The nation will lose control due to others taking over the spot and possibly ruining everything President Lincoln worked for. Plus He was the first ever president to ever be Assassinated in U.S. History. I would be just as scared knowing how easy it is for a president to be assassinated
a multilateral system of trading in which a country pays for its imports from one country by its exports to another.