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The greatest reward for a student is not a good grade. It is the willingness of his teacher to listen to him.

- Nikolay Konstantinov

homework turn in box You attempted the ten exercises for this topic. Those problems did not have an answer key. Use this form to ask me how well you did.

Before using this page, you should have your homework completed on paper. (Try being nice to your eyes and posture by printing the problems so you can work with pencil and paper instead of a screen.) This page is only for submitting your homework. To be short and concise it lacks any diagrams, pictures, or tables needed to work the problems.

Answer every question. Then use the button at the bottom of the page to create a code by processing your answers. Copy-and-paste the code into an e-mail.

Keep trying until you get 8 out of 10 or more.

1. 56.32 is 64% of what?

86 87 88 89

2. 42 is 30% of what number?

12.6 54.6 140 466

3. What number is 150% of 30⁄45?

4⁄9 1 1.5 2.5

4. Out of 245 racers who started the Junction City Marathon, 203 completed the race, 38 gave up, and 4 were disqualified. What percentage of racers did not complete the marathon?

1.6% 17% 21% 83%

5. Patrick left a tip of $8 on a restaurant bill of $50. What percent tip is that?

6.25% 15% 16% 20%

6. A project on Kickstarter.com was aiming to raise $15,000 for a precision coffee press. They ended up with 714 supporters, and raised 567% of their goal. How much did they raise?

$850 $2,645 $8,505 $26,455 $85,050

7. A student got 35 problems correct on a test with 45 problems. What is his percentage score?

22% 29% 71% 78%

8. A salesman earns a 40% commission. One week he earns $552 in commission. How much did he sell?

$138.00 $220.80 $1,380 $22,080

9. In my city 85% of the people who take a driver's licence test pass the first time. In January 289 people passed the test the first time. How many people took the test?

246 people 340 people 400 people 535 people

10. At the zoo an elephant is put on a diet until it weighs only 91% of its original 9,671 pounds. What weight was the diet's goal?

7,138 pounds 7,844 pounds 8,008 pounds 8,800 pounds