A23% increase followed by a 17% decrease is what percent change?

2.09% increase

Step-by-step explanation:

Let x = the original amount. then

23% increase is: x(1 + 0.23) = 1.23x

and a 17% decrease is 1.23x(1 - 0.17)

                                   = 1.23x(0.83)

                                   = 1.0209x

x was the original amount and 1.0209x is the new amount.

The percent change is:

Since the result is positive, it represents an increase.

Move the decimal two places to the right to convert the number to percent.

+0.0209 = 2.09 increase

b

step-by-step explanation:

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