Solve. Check for extraneous solutions.
= 5
A. {19}
B. {119}
C. {-1}
D. {125}
Answer: B
Mathematics
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Use De Morgan's laws to write a negation of the statement.She is not younger than 20 and he is younger than 20.
A. It is not true that she is younger than 20 or he is not younger than 20. B. She is younger than 20 or he is not younger than 20. C. She is younger than 20 or he is not older than 20. D. She is younger than 20 but he is not younger than 20.
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Simplify the complex fraction using Method 2.
A. 
B. 
C. 
D. 
Mathematics
Of all numbers whose difference is 12, find the two that have the minimum product.
What will be an ideal response?
Mathematics
Write the percent problem as a proportion and solve.67 is 50% of what number?
A. 1340 B. 13.4 C. 134 D. 33.5
Mathematics