Answer the following questions showing all your work. 6. You bought jeans last week for $55. Today you see that the jeans are on sale for $40. What is the percent decrease of the price?

7. Your pay increased from $230 to $250 per week. What is the percent increase of your weekly pay?

8. In 1987 the average price of gasoline was $0.94. Today the price of gas is about $3.00. What is the percent increase from 1987 to today?

9. The inventory of a store 2 years ago was worth $45,000. This year it is worth $49,500. What is the percent increase?

10. The original price of a sofa is $500. Answer the following questions.
a. If the sofa price decreased by 20%, what is the new price?

b. The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is the percent decrease?

c. If the company reduces the price in week 4 to $290, what is the percent decrease?

11. The attendance of your club increased by 30% from last year. There are 195 people in the club now. How many people were in the club last year?

12. All CD’s are on sale for 20% this week. The CD is $9.99. What is the original price of the CD?

13. There are 15 girls in your class this year. That is a 15% increase from last year. How many girls were in your class last year?

14. You bought shoes for $60. They were on sale for 40% off their original price. What is the original price of the shoes?