Solve and graph.|x| < 4
A. {x
x ? 4}, or (-?, 4]
B. {x
-4 < x < 4}, or (-4, 4)
C. {x
x < -4 or x > 4}, or (-?, -4) ? (4, ?)
D. {x
-4 ? x ? 4}, or [-4, 4]
Answer: B
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Provide an appropriate response.200 is 200% of what number? Use the percentage proportion.
A. 1 B. 100 C. 10 D. 1,000
Translate the sentence to an equation. Do not solve.The quotient of 9 and y is 2.5.
A. 9 = 
B. 9 - y = 2.5
C. 
= 2.5
D. 
= 2.5
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 5
- 3
- 
- 4
A. -48
+ 26
B. -48
- 26
C. 48
- 26
D. 48
+ 26
Provide an appropriate response.Suppose that you are solving a system of three linear equations and have evaluated D, Dx, Dy, and Dz. Under what condition does Cramer's rule not apply?
A. D = 0 B. D = 0; and either Dx = 0, Dy = 0, or Dz = 0 C. Dx = 0, Dy = 0, or Dz = 0 D. Dx = 0