Use the union rule to answer the question.If n(A) = 20, n(A ? B) = 58, and n(A ? B) = 16; what is n(B)?
A. 54
B. 55
C. 38
D. 53
Answer: A
Mathematics
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A. -121 B. -561 C. -63 D. 33
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Perform the conversion. Round to the nearest tenth when necessary.9.5 cm to in.
A. 950 in. B. 3.7 in. C. 0.1 in. D. 24.1 in.
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Graph the system of inequalities.2x + 3y ? 6x- y ? 3y ? 2 
A. 
B. 
C. 
D. 
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Solve the system of equations.5x + 3y + z = 55x - 4y - z = -204x + y + 2z = -9
A. {(-1, -5, 5)} B. {(-5, 5, -1)} C. ? D. {(-1, 5, -5)}
Mathematics