During the last twenty years, which category of the U.S. population has experienced the largest gains in average income?
a. The lowest-paid 20 percent
b. The middle 20 percent
c. The highest-paid 20 percent
d. All income categories have experienced about the same level of upward social mobility.
Question 2
During the last three decades, the real income of African American families in the United States has ________
a. gone down a lot.
b. kept pace with the gains made by white people.
c. gone up a lot.
d. changed very little.
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
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The declining age of menarche over the past 150 years has been measured in many European countries,
Checklist of Developmental Skills: Birth to 5 years
Checklist of Developmental Skills: Birth to 5 years Cont.