1. What is the primary purpose of using a double number line to model a ratio?
2. A recipe calls for 4 cups of sugar for every 2 batches of cookies. Following this ratio, you would need ___ cups of sugar to make 6 batches of cookies.
3. A hose fills a small pool with 90 gallons of water in 3 minutes. At this constant rate, how many gallons would be in the pool after 1 minute? The answer is ___ gallons.
4. A train travels 150 miles in 2 hours at a constant speed. Following this rate, how far will the train travel in 3 hours?
5. Maria can read 50 pages of a book in 40 minutes. If she continues reading at the same pace, she can read 100 pages in ___ minutes.
6. A bar graph shows the number of books read by students in three classes. The vertical axis starts at 20 instead of 0. What problem does this create?
7. Two stores sell the same item: Store X sells 105 units and Store Y sells 95 units. A bar graph starts its vertical axis at 90. How many units tall is Store X's bar on this graph?
8. A bar graph displays favorite sports: Soccer (25 students), Basketball (20 students), Tennis (10 students). The vertical axis correctly starts at 0. The bar for Soccer is ___ units taller than the bar for Tennis.
9. Which of the following is NOT a required feature of a valid bar graph?
10. In a bar graph with the vertical axis starting at 60, Candidate A has a bar 9 units tall and Candidate B has a bar 3 units tall. What are their actual vote counts?