Answer:
The two United States Supreme court decisions, which upheld "seperate but equal" racial segregation as constitutional doctrine
Answer:
B) unproductive in the long term because it gave little incentive for hard work.
Explanation:
Even if slavery played an important role in the construction of the Roman Empire, if we consider this practice in the long term it is very unproductive, because most parts of the slaves were performing tasks that were boring, disrespectful, humiliating or dangerous for the common citizens. However, these tasks were simple and didn't have a huge impact if they were taken out.
Okay, to get started, we are talking about c.3000 to c.300 BC. On tombs was some math written in ivory, or so, and these ivory labels had been used for "Tags" for grave goods. The evidence that Egyptians used mathematics happened during ca 2690–2180 BC is little, but can be seen on ivory inscriptions on walls. The earliest "correct" mathematics happened during the 12th dynasty, or ca 1990–1800 BC. It sometimes happened on material called "Kahun Papyri ". The lines of a diagram are of a distance of one cubit, compared to a "unit Of Measurement". I hope I could help! :)
I think it’s D... i could be wrong... sorry