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9th

grade

72%

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Chris Schanding

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10 questions

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- 1. Multiple Choice30 seconds1 pt
Middletown High School has student elections every year. Lately, the school has seen a 5% decrease in voting from election to election. If 910 students voted this year, how many will be expected to vote 8 years from now? (Round to the nearest whole number if necessary).

604

777

29

198

- 2. Multiple Choice30 seconds1 pt
More and more people are purchasing food from farmers' markets. As a consequence, a market researcher predicts that the number of farmers' markets will increase by 15% each year. If there are 6,200 farmers' markets this year, how many will there be in 10 years? (Round to the nearest whole number if necessary).

25,082

12,937

62,000

43,511

- 3. Multiple Choice30 seconds1 pt
A publishing industry report predicts that magazine subscriptions will drop by 10% each year. If this prediction is correct, then how many subscribers will a magazine with 98,000 subscribers have in 10 years? (Round to the nearest whole number if necessary).

34,170

16,348

7690

76,023

- 4. Multiple Choice30 seconds1 pt
Jenny has $20 in a savings account. The interest rate is 5%, compounded annually. To the nearest cent, how much interest will she earn in 2 years?

$2.05

$45.79

$1.99

$7.51

- 5. Multiple Choice30 seconds1 pt
Lauren has $90 in a savings account. The interest rate is 5%, compounded annually. To the nearest cent, how much will she have in 2 years?

$99.23

$21.98

$56.46

$9.21

- 6. Multiple Choice30 seconds1 pt
A cliff overlooking Oak Grove Lake is experiencing erosion, losing elevation at a rate of 5% every millennium. The cliff's current elevation is 1,200 meters. What will its elevation be in 6 millennia? (Round to the nearest whole number if necessary).

882

465

349

975

- 7. Multiple Choice30 seconds1 pt
Kelsey deposited $30 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?

$9.93

$2.01

$17.60

$5.75

- 8. Multiple Choice30 seconds1 pt
Thanks to its environmental initiatives, Silvergrove has cut its annual CO2 emissions by 5%. This year, the town produced 290,000 metric tons of emissions. If the downward trend continues, how much CO2 will be produced 7 years from now? (Round to the nearest whole number if necessary).

202,518

135,792

78,376

20,658

- 9. Multiple Choice30 seconds1 pt
The mice population is 25,000 and is decreasing by 20% each year. What will be the mice population after 3 years?

12,800

15,777

102, 475

2,500

- 10. Multiple Choice30 seconds1 pt
Your new computer cost $1500 but it depreciates in value by about 18% each year. How much will your computer be worth in 6 years? (Round to the nearest cent.)

$456.01

$556.98

$778.22

$332.63

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