Add or subtract.4 + 17

A. 14
B. 21
C. -13
D. -22

Answer: B

Mathematics

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Simplify.

A.
B. - 
C.
D. - 

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Find the sum.

A. 26
B. - 
C.
D.

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Multiply and simplify.18 

A.
B. -162
C. -2
D. 2

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Simplify. Assume that all variables represent positive numbers. 

A. 64x2 + 16x + 1
B. 2x + 1
C. 8x + 1
D. (8x + 1)2

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