I cant really help you on the models but I can on the other question. If it is above it is a positive number if it is below it is a negative number. So whatever number you think it is below just write a negative sign with the number. Hope this helps
<span>There were hundreds of generals commissioned in the American Civil War on both the Union and Confederate armies. Some, like Robert E. Lee, Stonewall Jackson, Ulysess S. Grant and William Tecumseh Sherman are household names.</span><span>
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It would encourage Europeans to launch campaigns and
expeditions to expand travel and trade.
Seeing goods that are new to them would spur them to find routes to
reach these lands and establish trade relations with them as well learn new
things that would benefit their societies.
true -man who ended the Period of Disunion was a Northern ruler named Yang Jian
-589, he conquered the south, united China, and created the Sui Dynasty
-Sui Dynasty did not last very long
-lasted from 589 to 618
-during this time period, its leaders restored order to China and started the Grand Canal
-Grand Canal is a canal linking Northern and Southern China
