Answer:
The year the Greek city of Helike disappeared is -⅕ times the year the US Civil War ended. Let w represent the year the Civil War ended.
Explanation:
Answer: one example would be that if you were making a product and the supplies you were getting is from really far.
Explanation: bc
It was the Gold Rush. The California Gold Rush began in 1848 and drew thousands of people who were looking to make a fortune.
Answer:
B. Technological
Explanation:
Improved sanitation and medicine relates to technological advances