math 7 Ch. 5 Test Review

What is the value of the expression  $x^2+3\ \ \ \ if\ \ \ x=9$ ? 

• 84

• 21

• 81

• 12

 $3x-4y\ \ \ \ if\ \ \ x=8\ \ \ and\ \ \ y=-2\ \ ?$  

What is the value of

• 32

• 16

• -4

• 46

 $p\cdot7=7\cdot p$  

Which property is shown in the equation

• Commutative Property of Multiplication

• Associative Property of Multiplication

• Identity Property of Multiplication

• Zero Product Property

Which property is shown in the equation

 $5+\left(6+2\right)=\left(5+6\right)+2$  

• Commutative Property of Addition

• Associative Property of Addition

• Identity Property of Addition

• Distributive Property

 $8\cdot1=8$  Which property is shown in the equation

• Commutative Property of Multiplication

• Associative Property of Multiplication

• Identity Property of Multiplication

• Zero Product Property

 $-3\left(2+7\right)$  

What is the value of the expression?

• -27

• 27

• 6

• -6

 $-3\left(x+4\right)$  

Which expression is equivalent to

• -3x - 12

• -3x + 12

• -3x + 4

• 3x - 12

 $9\left(k+4\right)-6$  

Simplify the following expression:

• 9k + 30

• 9k + 42

• 54k - 10

• -26k - 9

 $5\left(3x+4\right)$  

Which expression is equivalent to

• 15x + 20

• 15x + 4

• 35x

• -15x + 20

 $-6y+12+6y-6$  

Simplify:

• 6

• 18

• y + 6

• y + 18