Write in terms of i.- 
A. -7
B. 7
C. -7i
D. 7i
Answer: C
Mathematics
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Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x| - 5 ? 7
A. [2, ?)
B. (-?, -12] ? [12, ?)
C. [-12, 12]
D. [12, ?)
Mathematics
Convert to a mixed numeral.
A. 5
B. 7
C. 6
D. 6
Mathematics
Solve the problem.The function f models the population of Country X from 1991 to 1998. The graphs of f and the horizontal line y = 345 are shown in the figure. Use the graphs to determine when there was (i) a population equal to 345 million and (ii) a population of 345 million or less. 
A. between 1994 and 1998; earlier than 1994 B. 1994; between 1991 and 1994 C. 1994; after 1994 D. 1995; between 1991 and 1995
Mathematics
Divide and round to the nearest tenth.
?
?
A. -0.7 B. -0.3 C. -1.0 D. -0.9 E. -0.8
Mathematics