End of Unit 8/9 Extra Credit

Which graph represents a proportional relationship?

• 
• 
• 
• 

The graph shows to cost C in dollars of W pounds of blueberries, a proportional relationship.

Select all the true statements.

• 1 pound of blueberries costs $2.75.

• 2.75 pounds of blueberries cost $1

• 5 pounds of blueberries cost $15.50.

• 12 pounds of blueberries cost $33.

Clare used 25% less butter this month than last month when baking holiday treats. If she used 240 tablespoons of butter last month, how many tablespoons did she use this month?

Han earned $850 over the summer working odd jobs. He wants to put his money into a savings account for when he is ready to buy a car.A. His bank offers a simple interest account at 5%, how much interest will Han have earned after 2 years?

A car is 180 inches long. A truck is 75% longer than the car. How long is the truck?

• 135 inches

• 240 inches

• 255 inches

• 315 inches

Write each equation to match the situation.

A shirt, x, is discounted 20%; what is the sale price?

Write each equation to match the situation.

A car salesman makes 2% commission on all cars, x, that he

sells. How much commission does he make?

Write each equation to match the situation.

A marathon runner's time was 2% longer on Tuesday than Monday. How much time did he log on Tuesday when compared to Monday, x.

Write each equation to match the situation.

A family left a 20% tip after their meal. What is the final cost of their meal if the food cost x dollars?

Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin’s father pay for the meal?