From 1863 and 1869, roughly 15,000 Chinese workers helped build the transcontinental railroad. Chinese workers made up most of the workforce between roughly 700 miles of train tracks between Sacramento, California, and Promontory, Utah.
Answer: The Romans used gold, silver, and bronze coins for trade and to pay taxes. Goods came to the Roman Republic from several regions outside of Italy.
Explanation:
Archaeological and written sources prove that the Romans used money in exchange. The Romans had a highly developed monetary system, one of the highest quality in all of antiquity. It was common knowledge that the Romans had a highly developed trade, so they traded with many countries outside their state's borders. Luxury goods from other parts of the world came to Rome most often.
The major obstacle to Islamic expansion in India was the presence of the Rajputs, a traditional patrilineal clan/warrior ruling class.
147 is the circumference.
since the directions say to use 3 as pi, and we know that the radius is 7, we can say that
3 times 7^2 = A, which is 147
