Simplify the radical.
A. 3ab
B. -3a2b
C. 3
D. 3ab
Answer: B
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Graph the solution set of the inequality, where x is an integer, on the number line.3x ? -3
A. 
B. 
C. 
D. 
Solve and graph.6x - 7 ? 5 and 4x + 8 ? 20
A. [2,3]
B. [2, ?)
C. (-?, 2] ? [3, ?)
D. [3, ?)
Solve the problem.The following table shows the number of dog collars, in thousands, produced by Allied Pet Products in the three years considered. For a function of the form f(x) = ax2 + bx + c that fits this data, what is the value of b? 
A. -1.2 B. 1.9 C. 2.3 D. -1.6
Solve the problem using the quadratic formula.The cumulative number (in thousands) of deaths from a certain disease from 2000 to 2010 is modeled by 
where x = 0 corresponds to 2000, x = 1 to 2001, etc. Use the formula for A to estimate symbolically the year when the total number of deaths reached 100 thousand.
A. 2008 B. 2005 C. 2007 D. 2006