1. Find the percentage or rate or base. A. Find the percentage. 1. 20% of 75 is 2. What is 35% of 80? 3. What is 10% of 150? B. Find the rate. 4.9 is what percent of 45? 5. What percent of 50 is 12? 6. 15 is what percent of 150? C. Find the base. 7. 10 is 25% of what number? 8. 30% of what number is 15? 9. 32 is 40% of what number? 10. 25 is 10% of what number?​