Exam Reviewer for Math 7

• 1

• -3y

• 4x

• x and y

• 1

• 2

• 3

• 4

Which of the following are similar terms?

• 3x, xy and -3y

• -x, 3x and 3

• 4xy, yx and -2xy

• x, 2y and 5xy

Which of the following expression that represents the total amount paid for x cup of coffee that costs 21 SAR and 18 SAR delivery fee?

• 21x + 378

• 21(x + 18)

• 21x + 18

• x + 39

Which of the following statements is true about the expression 15.25x + 5.

• Jane buys 5 pens for 15.25 each.

• Marie has 5 SAR, she earns 15.25 SAR for every personalized bookmark she made.

• Sara sells cookies for 15.25 and muffins for 5 SAR.

• Lara buys x photocards for 15.25 each and keychains for 5 each.

Complete the equation below.

3(2x - 5) = ___x - 15

What property does the equation

(a + 3b) + 4 = 4 + (3b + a)

• Reflexive Property

• Associative Property

• Distributive Property

• Commutative Property

Which of the following is equivalent to 1.9x - 1.4 + 2.1 - 3.7x ?

• 4.9x

• 1.8x + 3.5

• 0.7 - 1.8x

• 3.5x - 5.6x

• a + 6

• 5 - a + 1

• 10 - 2a + 2

• 10a - 2

What is the greatest common factor of the expressions 5ab and 25a?

• a

• 5

• 5a

• 5ab