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1. Simplify the expression.

(x + 3y − 5z) − (x − 4y + 6z)

 

 

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2. Simplify the expression.
(2x − 1)(x2 + 4x − 2)
1
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3. If possible, completely factor the expression. (If the expression is not factorable, enter NF.)
x2 − 5x − 6
1
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4. Let x = 1 and y = 2. Find the value of the given capital letter.
N = x2 + 2xy + y2 + 1
N = 1[removed] [removed][removed]
 
 

 
 
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5. Solve the equations.
(a)    
2D + 5 = 13

D = 1[removed] [removed][removed]

(b)    
21E − 7 = 0

E = 2[removed] [removed][removed]
 
 

 
 
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6. Solve the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
x2 − 6x + 6 = 0
x =
1
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7. Solve the inequality.
2 − x ≥ 3x + 10
1
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8. Write a formula to express the given relation.
The area A of a parallelogram is the product of the base b and the height h.
A =
1
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9. If you multiply a number by five and then subtract negative ten, the difference is negative thirty. What is the number?
1[removed] [removed][removed]
 
 

 
 
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10. Write the ratio given as a simplified ratio.

A cement mixture calls for 160 pounds of cement for 4 gallons of water. What is the ratio of cement to water?
1[removed] [removed][removed]to 1
 
 

 
 
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11. If 4 melons sell for $0.56, how much would 7 melons cost?
$ 1[removed] [removed][removed]
 
 

 
 
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12. If 11% of the 220 million adult Americans live in poverty, how many adult Americans live in poverty?
1[removed] [removed][removed]million adult Americans
 
 

 
 

 

 

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