I guess the purpose of the terracotta soldiers was to protect the emperor in his afterlife...
B.
It was established to ensure fair rates/curtail discrimination.
Missouri Compromise admitted the zone of Maine, the northern locale of what was then Massachusetts, into the Union as a Free State.
This was done to adjust the quantity of "slave states" and "free states." This happened because of a compromise about slavery in Missouri, and in the federal regions of the American west.
the trapizoid one's area is 28 since 7 x 4 is 28 and you do multiply the slanted height