1. Name _____________________________________________ Date ____________________
Mrs. Labuski / Mrs. Portsmore Period _________________ CR#9
1. Solve.
8.4w - 0.67 = 15.29 1.4n + 43
= 85
2. Write an inequality for each sentence.
a. More than 2,500 people attended the convention. __________________________________
b. Her earnings were no more than $64. ___________________________________________
c. The winning 5K race time was less than 22 minutes. ________________________________
d. A checking-account balance is no more than $500. _________________________________
e. A maximum ceiling height of 8 feet was required in the new buildings. _________________

2. 3. Katie recorded the number of siblings her friends have. Her results are listed below.
a. Make a dot plot for the data.
b. Make a box plot
4a. Find the IQR.
4b. Find the MAD
The least value ________________
The lower quartile _____________
The median ___________________
The upper quartile _____________
The greatest value ______________

3. 5. Use the data below to create a frequency chart and histogram.

4. 6. Plot and label the points: D(-1, -1), E(-1, 3), F(2, 4), G(2, -3)
Find the area of the quadrilateral. Show the formula, all work, and label your answer.
7a. Mrs. Labuski is working to swim at a ratio of 8:1 yards to minutes. When I swim 450
yards, how many minutes will I swim? Use a proportion to solve.
7b. Convert the yards to meters. (1yard ≈ 0.914 meters) Use a proportion to solve.

5. 8. Mrs. Dean is mixing pain. The mixture requires 4 cups of red for every 3 cups of blue. Mrs.
Stebben’s mixture requires 3 cups of red for every 2 cups of blue.
A.) Complete both charts and find a ratio with a common denominator.
Mrs. Dean’s mixture
Red (cups) 4
Blue (cups) 3
Mrs. Stebben’s mixture
Red (cups) 3
Blue (cups) 2
B.) Circle the two ratios you can use to compare.
C.) Which mixture will have a stronger red tint? ______________ Explain. _______________
_____________________________________________________________________________
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9.a. Mrs. Marks has ounces of fertilizer for her plants. She plans on using ounce of
fertilizer for each plant. How many plants can she fertilize?
b. Mr. Fulton bought pounds of ground beef for the cookout. He plans on using pound
of beef for each hamburger. How many hamburgers can he make?

6. 10. I went shopping for a new outfit for school. I decided to buy a dress that costs $31.90 but
was on sale for 50% off. Since there were such great sales, I also bought a skirt that costs
$26.70 but was on sale for 40% off. The sales tax was 6.5%. What was the total cost of my
purchase?
cost of dress cost of skirt cost of tax &
with discount with discount purchase total cost

7. 10. I went shopping for a new outfit for school. I decided to buy a dress that costs $31.90 but
was on sale for 50% off. Since there were such great sales, I also bought a skirt that costs
$26.70 but was on sale for 40% off. The sales tax was 6.5%. What was the total cost of my
purchase?
cost of dress cost of skirt cost of tax &
with discount with discount purchase total cost