Each hour, the number of bacteria in dr. nalls petri dish tripled. what percent is the population compared to the population the hour before?

300%.

Step-by-step explanation:

Suppose the population is 100,  then it rises to 300 after one hour.

So the requires percent is (300/100) * 100

= 300%.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068