Mastering Percentages: Financial Math for Grade 8

1. Sarah wants to buy a new phone that costs $600. If she saves 15% of her monthly allowance of $200, how many months will it take her to save enough money to buy the phone? Write an equation to represent this situation.

• 30 months

• 20 months

• 15 months

• 25 months

2. John has a part-time job where he earns $12 per hour. If he works x hours in a week, write an expression to calculate his weekly earnings. How much will he earn if he works 10 hours?

• $120

• $100

• $140

• $80

3. A store is having a sale where all items are 25% off. If a jacket originally costs $80, what is the sale price? Write an equation to find the sale price.

• $70

• $60

• $40

• $50

4. Emily invested $1,000 in a savings account that earns 5% interest per year. Write an equation to determine how much money she will have after 3 years, including interest.

• $1,200.00

• $1,100.00

• $1,157.63

• $1,050.00

5. A car dealership offers a 10% discount on a car that costs $25,000. Write an equation to find the final price of the car after the discount is applied.

• $25,500

• $23,000

• $20,000

• $22,500

6. Mark is saving for a video game that costs $50. If he saves $5 each week, write an equation to determine how many weeks it will take him to save enough money.

• 10 weeks

• 5 weeks

• 20 weeks

• 15 weeks

7. A restaurant bill comes to $45. If you want to leave a 20% tip, write an equation to calculate the total amount you will pay including the tip.

• 40

• 54

• 60

• 50

8. Lisa bought a dress for $120 and later returned it for a refund. If the store charges a 10% restocking fee, how much money will she get back? Write an equation to find the refund amount.

• $95

• $110

• $100

• $108

9. A gym membership costs $30 per month. If you want to calculate the total cost for x months, write an expression for the total cost. How much will it cost for 6 months?

• $240

• $150

• $180

• $210

10. A student scored 75% on a test with 40 questions. Write an equation to find out how many questions he answered correctly.

• 25

• 35

• 40

• 30