Which of the equations are true identities? A. ( x − 2 y ) 2 = x 2 − 4 x y + 4 y 2 B. ( m + 1 ) 2 − m 2 = 1 A. B. (x−2y) 2 =x 2 −4xy+4y 2 (m+1) 2 −m 2 =1

Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.