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1. An ice tray contains 20 spaces for ice cubes. 7 of these spaces contain ice cubes. What is the ratio of ice cubes to spaces without ice cubes?


2. Is the ratio 24/50 equivalent to the ratio 36/75? How do you know?


3. A recipe that makes 8 quarts of chili uses 2 pounds of ground beef. How many quarts of chili can be made from 5 pounds of ground beef?


4. What is the difference between a ratio and a rate?


5. If it costs $28 for 8 people to eat at Chuck E. Cheese, what was the unit rate per person?