Lesson 8

A car dealership pays $8,350 for a car. They mark up the price by 17.4% to get the retail price. What is the retail price of the car at this dealership?

A store has a 20% off sale on pants. With this discount, the price of one pair of pants before tax is $15.20. What was the original price of the pants?

$3.04

$12.16

$18.24

$19.00

A music store marks up the instruments it sells by 30%.

1. If the store bought a guitar for $45, what will be its store price?
2. If the price tag on a trumpet says $104, how much did the store pay for it?
3. If the store paid $75 for a clarinet and sold it for $100, did the store mark up the price by 30%?

A family eats at a restaurant. The bill is $42. The family leaves a tip and spends $49.77.

1. How much was the tip in dollars?
2. How much was the tip as a percentage of the bill?

The price of gold is often reported per ounce. At the end of 2005, this price was $513. At the end of 2015, it was $1060. By what percentage did the price per ounce of gold increase?

A phone keeps track of the number of steps taken and the distance traveled. Based on the information in the table, is there a proportional relationship between the two quantities? Explain your reasoning.

A college student takes out a $7,500 loan from a bank. What will the balance of the loan be after one year (assuming the student has not made any payments yet):

1. if the bank charges 3.8% interest each year?

2. if the bank charges 5.3% interest each year?

Match the situations with the equations.