Perform the indicated operation.
A. 9
B. 8
C. 7
D. -8
E. -7
Answer: E
Mathematics
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Add. 15
+ 
A. 15
B. 14
C. 13
D. 14
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Solve the rational inequality. Write the solution set using interval notation; then graph the solution set on a number line.
? 3x
A. [4, 6]
B. [6, ?)
C. [0, 4] ? (6, ?)
D. (-?, 4] ? [6, ?)
Mathematics
Solve the problem.How long will it take for prices in the economy to double at a 13% annual inflation rate? (Round to the nearest year.)
A. 9 yr B. 6 yr C. 5 yr D. 23 yr
Mathematics
Find the value of the expression without using a calculator.2log27
A. 7 B. 49 C. 128 D. 2
Mathematics