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# Unit: Working with units

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### About this unit

If you are in the United States, you might see a car with a fuel efficiency rating of 50 miles per gallon. Somewhere else, you'd probably see it called 4.7 liters per 100 kilometers. Let's practice solving real world problems like this involving units!### Learn

### Practice

- Defining appropriate quantities for modelingGet 3 of 4 questions to level up!
- Formulas and unitsGet 3 of 4 questions to level up!

### Learn

### Practice

- Using units to solve problemsGet 3 of 4 questions to level up!

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