Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.-9x - 21 ? -3(2x + 9)
A. [2, ?)
B. (-?, 2)
C. [2, ?)
D. (-?, 2]
Answer: A
Mathematics
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Find an equation of a line satisfying the following conditions.Horizontal, passing through 
A. x = 
B. y = - 
C. x = - 
D. y = 
Mathematics
Divide.324.3 ÷ 1000
A. 324,300 B. 32,430 C. 0.3243 D. 3.243
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Solve.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 72 seconds are required to make a 3-by-4 enlargement, find the time required for a 4-by-8 enlargement.
A. 160 sec B. 256 sec C. 224 sec D. 192 sec
Mathematics
Match the given equation with one of the graphs.y2 = 25 - x2
A. 
B. 
C. 
D. 
Mathematics