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