Percents: Finding the Whole

1. 10% of what number is 8?

2. 5 is 4% of what number?

3. 50% of what number is 46? 

4. 34% of what number is 51? 

5. 14 is 20% of what number?

6. 5% of what number is 3.5?

7. 1 is 25% of what number?

8. 15 is 60% of what number?

9. 50% of what number is 80?

10. 150% of what number is 30?

11. 68% of what number is 130?

12. 43% of what number is 130?