# Stay Cool Final Quiz: Grade 9

12 Questions | Total Attempts: 74  Settings  This is your final quiz for the program. You will have 7 minutes to answer 12 questions. Take some deep breaths, think up some Coping Statements, and good luck!

• 1.
Chantelle won 9 of 15 tennis games she played. At this rate, which of the following is the best prediction of the number of tennis games she will win out of her next 12 games?
• A.

4

• B.

7

• C.

11

• D.

6

• 2.
Millie entered her dog in a dog show. Her dog got a score of 64. Which measure of data can Millie use to determine whether her dog’s score was in the top half of all scores at the show?
• A.

Median

• B.

Mode

• C.

Mean

• D.

Range

• 3.
Dante has 5 times as many marbles as Kenny. Juan has 1/3 as many marbles as Dante. If Kenny has 30 marbles, how many marbles does Juan have?
• A.

6

• B.

50

• C.

2

• D.

18

• 4.
Josh earns money by washing cars in his neighborhood. He spent \$215 on supplies and charges \$15 for each car washed. Josh’s profit, p, can be represented by the functionp = 15n − 215, where n represents the number of cars that Josh washes. What is the minimum number of cars Josh must wash to make a profit?
• A.

14

• B.

29

• C.

15

• D.

Not here

• 5.
Which expression is equivalent to −7(x − 2) + 5(3 − x) − 4x?
• A.

−16x + 1

• B.

−16x + 29

• C.

−2x + 1

• D.

−12x + 13

• 6.
A salesperson’s commission, c, is 6% of her total sales, s. Which function best represents the salesperson’s commission?
• A.

C = 0.06s

• B.

C = s + 0.06

• C.

C = s + 0.06s

• D.

C = ( 6 / s )(100)

• 7.
If today is Tuesday, what day of the week will it be 100 days from today?
• A.

Tuesday

• B.

Wednesday

• C.

Thursday

• D.

Friday

• 8.
If the diameter of a circle is dilated by a scale factor of 0.6, what will be the effect on the circle’s circumference?
• A.

The circumference will be 0.3 times as large.

• B.

The circumference will be 0.36 times as large.

• C.

The circumference will be 1.88 times as large.

• D.

The circumference will be 0.6 times as large.

• 9.
Point S and point T are located on the same coordinate plane. Both the x-coordinate and the y-coordinate for point S are negative. Both the x-coordinate and the y-coordinate for point T are positive. Which statement about the line containing points S and T must be true?
• A.

The graph of the line has a negative slope.

• B.

The graph of the line has a positive slope.

• C.

The graph of the line has a negative y-intercept.

• D.

The graph of the line has a positive y-intercept.

• 10.
Mr. Sylvester bought gardening supplies for \$79.75, not including tax. If the tax rate was 8%, what was the total cost of these gardening supplies, including tax?
• A.

\$86.13

• B.

\$73.37

• C.

\$87.75

• D.

Not here

• 11.
Desmond wants to take guitar lessons. The one-time registration fee is \$60, and each lesson costs \$40. Which of the following inequalities can Desmond use to determine x, the number of lessons he can take if he wants to spend no more than c dollars?
• A.

60x + 40x ≤ c

• B.

60 + 40x ≤ c

• C.

60x + 40x ≥ c

• D.

60 + 40x ≥ c

• 12.
David wants to spread wildflower seeds in a rectangular field that is 60 feet wide and 70 feet long. Each package of wildflower seeds covers about 175 square feet and costs \$6.95. Which of the following amounts is closest to the total cost of the wildflower seeds David needs for this field?
• A.

\$24.00

• B.

\$170.00

• C.

\$604.00

• D.

\$310.00

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