Multiply. Then simplify if possible. Assume that all variables represent positive values. ?   

A. 5x
B. 15x2
C. 15
D. 15x

Answer: D

Mathematics

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A. -  - 4x
B.  + 4x
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D. -  + 4x

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Simplify.7() + ()

A. 22
B. 230
C.
D.

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Evaluate.25 + (26 ? 28) - 18

A. 1410 B. 510 C. 61 D. 735

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Use a calculator to find the approximate value of the expression rounded to two decimal places.tan 37°

A. -0.84 B. 0.60 C. 0.80 D. 0.75

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