Grade 9 Math week quizz

billy has saved 2745 pennies. How much money is that?

• $2745
• $274.50
• $27.45
• $2.75

Simplify the Expression 
4² + 40 ÷ 8

• 7
• 21
• 6
• 81

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

In a group of 20 children, 11 have a scooter and 13 have a pair of roller skates. 4 children have neither. Use a Venn diagram to find how many children have both.

• x = 16

• x = 24

• x = 8

Is 5 a solution for 3x + 4 = 19

• yes
• no

Use the quadratic formula to solve the equation:

x² + 3x + 2 = 0

• 1, 2

• 1, -2

• -1, -2

On the following diagram, shade these sets: (A ∩ B)′

• 
• 
• 

What is the slope in the picture?

• Positive
• Negative
• Zero
• Undefined

What is the range in gas mileage for cars?

• 2
• 3
• 4
• 6