1. Unit 2: decimal, percents, ratio & proportions

2. Solve for x: Hint any time you have three numbers in comparison you can solve the problem using proportion.

3. A gasoline can holds 7 / 8 liter (L). How much will the can hold when it is 1 / 2 full?  Remember that you are looking to find half of the current amount.  If you had a 200 dollars and you were giving half of it away, how would you determine what half is?

4. If Danielle spent $ 43.76 on groceries and gave the cashier $50.00. How much change should she get back?  It’s asking for change, so what operation should we use in this problem.  Remember change means that you will get something back from the original amount that was given.

5. Max bought three CD’s for $12.25 each and two DVD’s for $5.50 each. What is the subtotal?  Subtotal indicates that you are going to do what with the numbers.  Make sure you account for all of the items that you have.

6.  Find the percent notation for 5.76  Convert 0.038 to a percent

7. A photographer wants to enlarge a picture that has a length of 2.5 cm and a width of 3.5 cm. The enlarged picture has a width of 10.5 cm what must the length be?  Hint any time you have three numbers in comparison you can solve the problem using proportion.

8. The retail price is $4,000. The percent markup on cost is 20%. What is the cost?  Mark-up, does this indicate and increase or decrease?

9. 

10. Using the information given, calculate the percentage of sales for November; August $35,000, September $47,000, October $52,000, November $65,000, December $78,000, January $40,000. A. 15% B. 20% C. 18% D. 16.4%