One who writes down the births deaths and vital statistics of a population

How did the russian revolution impact world war l ?

An economic term that describes happiness and its hard to measure in numbers is

Based on what you read in the fact sheet, identify the type of customer the company is hoping to reach. super-phonic systems wants to sell phones to customers who: expect the latest smartphone technology. need affordable phone service in remote areas. care more about attractive designs than reliability. will pay top prices for features such as web-surfing.