Expressions, Inequalities and Equations

Which expression is equivalent to 3x + 5 + 7x + 2?

• 10x + 7

• 17x

• 17

• 15x + 2

Which expression is equivalent to 6(3y - 2y + 7)?

• 18y + 7
• 21y - 14y + 7
• 18y + 42
• 6y + 42

Evaluate 3b + 4c if b = 9 and c = 3

• 27

• 12

• 15

• 39

Which expression is equivalent to 3a² + 6a + 5a²?

• 14a²
• 14a
• 8a² + 6a
• 3a² + 11a

Evaluate the following expression

x² -2(x+5) if x=10

• 10

• 70

• 85

• 90

Match the graph with its inequality.

• 11 < a

• 11 > a

• 11 ≤ a

• 11 ≥ a

Does the given value make the inequality true?  x + 9 > 21, when x = 15

• True
• Not True

Evaluate 4w - 3y if w = 7 and y = 6

• 24

• 21

• 10

• 46

Write an inequality for this situation:

You are driving, and the maximum speed limit is 55.

• s < 55

• s > 55

• s ≤ 55

• s ≥ 55

Evaluate the expression:

4x+3y-2x, where x=8 and y=12

• 32

• 84

• 54

• 52