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现在参加这个测试
Keystone Review - Linear Equations
1.
A
D
B
C
2.
D
A
B
C
3.
B
A
C
D
4.
C
A
B
D
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A
B
C
D
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C
D
A
B
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C
D
A
B
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A
B
C
D
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A
B
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D
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A
B
C
D
11.
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W
C
X
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13.
A. 138
B. 230
C. 92
D. 115
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B
C
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A
C
D
B
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16.
Y
Z
X
W
A
C
D
B
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D

19. Shane's insulation company charges an initial fee 

of $25, plus $1.50 for every square foot of insulation

sprayed. Shane graphed y, the amount that his insulation 

company charges, as a function of x, the number of 

square feet of insulation sprayed.  What does the 

y - intercept of Shane's graph represent?

 The charge per square foot of insulation sprayed

The initial fee

 The number of square feet of insulation sprayed
The total amount owed
20.
C
D
A
B
C
D
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A
B
C
D
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A
B
C
D
A
B
23.
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