Factor out the greatest common factor.4x12 - 8x9 + 12x6 - 16x3
A. 4x3(x4 - 2x3 + 3x2 - 4)
B. x3(x9 - 2x6 + 3x3 - 4)
C. 4(x9 - 2x6 + 3x3 - 4)
D. 4x3(x9 - 2x6 + 3x3 - 4)
Answer: D
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Solve the problem.Find the gasoline price index for 1985 using the 2000 price as the reference value. Use the table below. 
A. 129.6 B. 7.7 C. 77.2 D. 84.9
Find the domain and range.f(x) = (x + 5)2 + 6
A. Domain: All real numbers; range: y > -6 B. Domain: x > 6; range: All real numbers C. Domain: x > -6; range: All real numbers D. Domain: All real numbers; range: y ? 6
Write the set as indicated.Write {2} using set-builder notation.
A. {x?x is all natural numbers} B. {x is a constant} C. {x} D. {x?x is the natural number 2}
Solve the problem.The information in the chart below gives the salary of a person for the stated years. Model the data with a linear function using the points (1, 24,800) and 
Then use this function to predict the salary for the year 2008. 
A. $35,200 B. $35,180 C. $35,240 D. $35,220