Factor out the largest possible common factor.9(y + 2) - x(y + 2)
A. (y - 2)(x - 9)
B. (9y + 18) - (xy + 2x)
C. (y + 2)(9 + x)
D. (y + 2)(9 - x)
Answer: D
Mathematics
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Provide an appropriate response.If a student has scores on three tests of 82, 89 and 75, write an inequality that expresses the grade needed on the fourth test to have a final average of 80 or above and solve the inequality.
Fill in the blank(s) with the appropriate word(s).
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Multiply and simplify. 
? 
A. 
B. 
C. 
D. 
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Determine whether the polynomial is a perfect square trinomial, a difference of squares, or neither.-81x2 + 64y2
A. Neither B. Perfect square trinomial C. Difference of squares
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
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