Solve.
= 
A. 64
B. 8
C. 1
D. 49
Answer: C
Mathematics
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A. $1.2 × 109 B. $1.2 × 108 C. $12 × 109 D. $12 × 108
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Multiply and simplify.cos ? sin ? (sec ? - csc ?)
A. cos2? - 1 B. 1 C. sin ? - cos ? D. sin ? - 2 csc ?
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Simplify.
A. - 
B. 
C. - 
D. 
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Combine like terms.Find the perimeter.
A. 4.4x + 8y + 3.5 B. 6.4x + 9y + 0.5 C. 5.4x + 7y + 0.5 D. 8.4x + 10y + 3.5
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