Answer:Here are the answers:1. The quantity which is compared to 100 is called the rate.2. The element which refers to the quantity that represents the whole is called the base.3. If we are looking for the quantity which is a part of a base, that means we are solving for the percentage.4. 25% of 80 is 20. 25% is the rate.5. 37 is 50% of 74. 74 is the base.6. 60% of 50 is 30. 60% is the rate, 50 is the base.7. 40 is 20% of 200. 20% is the rate, 200 is the base.8. 15 is 12% of 125. 12% is the rate, 125 is the base.9. 10% of 250 is 25. 10%* is the rate, 250 is the base, 25 is the percentage.10. 30% of 90 is 27. 30% is the rate, 90 is the base, 27 is the percentage.#hope it helps [tex].[/tex]