Factor by grouping.9y - 108 + xy - 12x
A. (y - 12x)(9 + x)
B. (x - 12)(y + 9)
C. (x - 12)(9y + x)
D. (y - 12)(9 + x)
Answer: D
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Write the whole number in word form.64,568,009
A. Sixty-four million, five hundred sixty-eight thousand, nine B. Sixty million, forty-five thousand, sixty-eight hundred and nine C. Sixty-million, five thousand sixty-eight hundred, nine D. Sixty-four million, five hundred thousand, sixty-eight hundred, nine
Solve the problem.A ball is kicked upward with an initial velocity of 32 feet per second. The ball's height, h (in feet), from the ground is modeled by 
where t is measured in seconds. How much time does the ball take to reach its highest point? What is its height at this point?
A. 2 sec; 48 ft B. 1 sec; 32 ft C. 2 sec; 16 ft D. 1 sec; 16 ft
Simplify by factoring.
A. 4a2b 
B. 4ab 
C. 4 
D. -4a4b2 
Graph the solution set of the system of inequalities.y < 4x + 4y ? - 2x
A. 
B. 
C. 
D. 