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Ch. 6 Expressions Pretest
Contributed by: Carlson
  • 1. In the expression x + y + 5, what is/are the variable(s)?
A) x and y
B) x
C) 5
D) y
E) I don't know
  • 2. In the expression 2z + 3z + 4, what is/are the variable(s)
A) z and 4
B) I don't know
C) 2z
D) 2
E) z
  • 3. Which expression has two different variables?
A) 6a + 3a
B) 2y - 9
C) 9x+3x-12
D) I don't know
E) 2x + 3y
  • 4. What is the value of the expression 25•(5-1)÷4-12
A) I don't know
B) 13
C) 19
D) 18
E) 14
  • 5. What is the value of the expression 7+9•(3+8)
A) 56
B) 176
C) I don't know
D) 106
E) 42
  • 6. Evaluate the expression if e = 1/3: 9e2
A) 1
B) 3
C) 14
D) I don't know
E) 6
  • 7. Factor the expression 35x + 63y
A) 44xy
B) 7(5x + 9y)
C) I don't know
D) 98xy
E) 5(7x)+9y
  • 8. Simplify the expression x + 4x + x
A) I don't know
B) 4x + 2x
C) 6x
D) 4+3x
E) 4(3x)
  • 9. Simplify the expression (3•x) • 11
A) x=33
B) 33x
C) 3x•11
D) 33+x
E) I don't know
  • 10. What property is used in this expression: 15+(5+8) and (15 + 5) + 8
A) Associative Property
B) Identity Property
C) I don't know
D) Commutative Property
E) Distributive Property
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