单项选择题


In 1988 there were 40,000,000 public school students in the United States, of whom 22% lived in the West. Approximately, how many public school students are projected to be living in the West in 2008（）

A. 9,000,000
B. 12,000,000
C. 15,000,000
D. 24,000,000
E. 66,000,000

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单项选择题
Jordan has taken 5 math tests so far this semester. If he gets a 70 on his next test, it will lower the average (arithmetic mean) of his test scores by 4 points. What is his average now（）

A. 74
B. 85
C. 86
D. 90
E. 94
单项选择题
If 80% of the adult population of a village is registered to vote, and 60% of those registered actually voted in a particular election, what percent of the adults in the village did NOT vote in that election（）

A. 20
B. 40
C. 48
D. 50
E. 52
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