Unit 3, Test 2 Review

Which expression is equivalent to 3 x 3 x 3 x 3 x 3 x 5 x 5?

Which expression represents "the sum of 8 and h". Select TWO

• 8h

• h+8

• 4+4+h

• h+h+h+h+h+h+h+h

What phrase represents the expression 9 - 2d? Select TWO

• Nine less than 2d

• 2d less than nine

• A number squared subtracted from nine.

• The difference between nine and 2d

• Nine subtracted from a number squared

Four students are told to write down expressions in math class. The students' expressions are shown in the table.

Which student's expression has a coefficient of 1 when simplified?

• Hayden

• Michelle

• Natalia

• Stewart

Groups:

(a) TRUE

,

(b) FALSE

• 
• 
• 
• 

If the expression 4+8y is expressed as a(1+by), what must be the values of a and b?

• a=5, b=2

• a=2, b=15

• a=4, b=2

• a=4, b=20

Which expression is equivalent to 2(6j) + j

• 14j

• 13j

• 12j+3

• 10x + 3

• 10x + 5

• 16x + 11

• 16x + 3

The table shows two expressions representing the length and width of a rectangle.

Which expression represents the Perimeter of the rectangle?

• 3s + 8

• 3s + 16

• 6s + 16