Weight (lbs.) Cost ($)

CCA Week 12 Test REVIEW 7R 1. Look at the table below.

Weight (lbs.)

3

5

8

10

Cost ($)

9

15

24

30

Determine the constant of proportionality.

2. Elizabeth took a test of 25 questions. If she missed 2 questions, what percent did she get correct?

3. Use a table for compound interest:

Vanessa deposited $10,000 into a savings account that earns 3% interest compounded annually. What is the total amount of interest earned over the 4 years? Use the table below:

Year Starting Balance _($) Prt

I (Interest Earned, $) 1 10,000 10,000 • 0.03 • 1 300 2 10,300 10,300 • 0.03 • 1 309 3 10,609 10,609 • 0.03 • 1 318.27 4 10,927.27 10,927.27 • 0.03 • 1 327.82 5 11,255.09

4. The diagram shows the relationship between gallons of gas and the price at the gas station.

What is the constant of proportionality for this relationship?

5. Determine the constant rate of change for the table.

Hours 5 10 12 15

Miles 60 120 144 180

_______ miles/hour

6. The graph shows the number of pages Ashley reads and the number of minutes she spent reading a book. What is the rate of change in pages per minute? Record your answer in the grid provided on your answer document.

7. Two competitors advertised the Pizza of the Week for a special price. The prices are shown in the table and graph. Which pizzeria advertised the lowest price per pizza? Explain.

A Gina’s Pizzeria; The constant rate of change in the graph is $8 per pizza, and the constant rate in the table is $7 per pizza. B Gina’s Pizzeria; The constant rate of change in the graph is $7

per pizza, and the constant rate in the table is $8 per pizza. C Nunzio’s Pizza & Subs; The constant rate of change in the graph

is $7 per pizza, and the constant rate in the table is $8 per pizza. D Nunzio’s Pizza & Subs; The constant rate of change in the graph

is $8 per pizza and the constant rate in the table is $7 per pizza.

8. What is the cost of a $8.00 watch with a $2.00 discount and a 7.5% sales tax? Round to the nearest cent.

9. Georgette wants to lose some weight. She decided to decrease the amount of sugar she eats every day from 20 teaspoons to 14 teaspoons. By what percentage did Georgette decrease the teaspoons of sugar she eats?

10. Josie drank 8 ounces of milk each day before school. Which graph best represents y, the total number of ounces she drank in x days?

F H

G J

11. What was the original price of a pair of jeans, if a 40% off coupon took $22.00 off the total? A

40

100



22

x

40

22



x

100

x



22

x



40

12. The table relates the videos rented to the total cost.

Which describes the cost per rental?

13. Macy has a monthly net income of $6,000. The table below shows her average monthly expenses.

Macy’s Monthly Budget

House Payment, $1,900 Car Payment, $400

Utilities, $240 Groceries, $300

Credit cards, $160 Cell phone, $100

Clothing, $100 Restaurants, $500

Savings, $800 College Loan, $1,000

Car insurance, $200 Gas and car maintenance, $300 Define each type of expense, then name 4 examples of Macy’s fixed expenses and 4 of Macy’s variable expenses.

Fixed - ___________________ Variable - __________________ Examples: _______________ Examples: _______________ ________________________ ________________________ ________________________ ________________________ ________________________ ________________________

14. Scott wants to purchase 2 ties for his new suit. One tie is $26 and the other is $18. Which of the following stores would have the best discount for Scott’s purchase?

Men’s Warehouse has a buy one,

get one 75% off of equal or lesser value $___________ saved

Macy’s is offering 5% off the total $___________ saved

Dillard’s offers a $10 off coupon $___________ saved

JoS. A. Bank has a sale of 40% off

15. Samantha spends $12.36 for 6 pounds of Red Delicious Apples and $12.11 for 31

2 pounds of Honeycrisp Apples. Which apples cost less per pound and by how much?

A The Red Delicious Apples cost

less by $0.25 per pound. C The Red Delicious Apples cost less by $1.40 per pound. B The Honeycrisp cost less by

$0.25 per pound. D The Honeycrisp cost less by $1.40 per pound.

16. Melissa deposited $5,000 into a savings account that earns 4% simple interest. How much interest did she earn after two years?

17. Nothing Bundt Cake sells 200 mini bundt cakes per day. 55% of the cakes are chocolate. How many cakes that are made in a day are chocolate?

18. Alison is baking cupcakes for her friends in her gymnastics class. She plans on baking 10 cupcakes for every 8 friends. If each pan Alison uses to bake the cupcakes holds 6 cupcakes, what is the minimum number of these pans that she needs in order to bake enough cupcakes for 24 friends?

CCA Week 12 Test REVIEW 7R Answer Section 1. ANS: 3 PTS: 1 STA: 7.4C LOC: 7.1B 2. ANS: 92%

PTS: 1 STA: 7.4D LOC: 7.1A 3. ANS:

$1,255.09

PTS: 1 STA: 7.13E LOC: 7.1C 4. ANS:

2.99

PTS: 1 REF: Document 11 STA: 7.4C

LOC: 7.1D 5. ANS:

12 miles/hour

PTS: 1 STA: 7.4A LOC: 7.1D 6. ANS:

0.5

PTS: 1 STA: 7.4A LOC: 7.1D

7. ANS: B PTS: 1 STA: 7.4A LOC: 7.1B 8. ANS:

$6.45

PTS: 1 STA: 7.13A LOC: 7.1B 9. ANS:

30%

PTS: 1 STA: 7.4D LOC: 7.1(A)(B)(F)

12. ANS:

$1.50 per video

PTS: 1 REF: Document 11 STA: 7.4B

LOC: 7.1D 13. ANS:

Answers vary

PTS: 1 STA: 7.13B LOC: 7.1 (A)(B)(E)(G) 14. ANS:

JoS. A. Bank has a sale of 60% off any tie that costs $25 or more; $15.60 savings

PTS: 1 STA: 7.13F LOC: 7.1C

15. ANS: C PTS: 1 STA: 7.4B LOC: 7.1G TOP: Week 35 CCA

16. ANS: $400

PTS: 1 STA: 7.13E LOC: 7.1B 17. ANS:

110

PTS: 1 STA: 7.4D LOC: 7.1A

18. ANS: J PTS: 1 STA: 7.4D LOC: 7.1A TOP: Wk 12 CCA