1. Ch. 8 Review

2. 100 pts each
(-3.2)0
(2xy3)4(x2y)4

3. 100 pts each
-(3)-1
𝑥 12 𝑥 6

4. 100 pts each
(3)-2
𝑥 4 𝑥 9

5. 100 pts each
8x-3y5
5 𝑥 −6 𝑦 3

6. 100 pts each
22 x 2-8

7. 100 pts each
𝑚 −2 𝑛 −4 𝑚 −12 𝑛 −8
8-2 x 90

8. 100pts each
8-2 x 80 x 810
( 2𝑥 3 )3

9. 100pts each
2a-9 x 5a5
( 3 5 )2

10. 100pts each
y3 x 3y2 x 5y
-2a2 x 4b-4 x 4b8 x a-4

11. 100pts each
( 𝑥 −2 𝑥 7 𝑥 −3 )-2
(r-3)5

12. 200 pts
( −1 7 −3 −2 )3

13. Evaluate 2x3y-3 when x = -2 and y = 3.
200 PTS EACH
Evaluate 2x3y-3 when x = -2 and y = 3.
Evaluate −3 𝑥 −2 𝑦 −2 when x = 3 and y = -2

14. 300pts Write all in standard form
5 x x 103
2.34 x 10-5

15. 200pts Write in scientific notation
4,203,000,000,000

16. 200pts simplify
(8 x 102)(4 x 109) (3 x 104)-2
(0.2 x 10-4)(.7 x 10-4)

17. 200pts
Suppose the population at a school is 560 students and is growing at a rate of 5% each year.
Write an equation to model the population growh. Predict the population after 10 years.

18. 200pts Find the balance in the account
$5000 principal earning 2% after 7 years.
$2300 principal earning 10% after 3 years.

19. 200pts
A car costs $34,000 and decreases in value by 12% per year. How much will the car cost after 5 years?

20. Write using only one exponent. 27x3y3
100pts
Write using only one exponent. 27x3y3

21. 100pts
Graph y = 3x

22. 100pts
Graph y = -3x

23. 100pts
Graph y = 3-x

24. Wrap up
Questions / Comments Bonus: candy and 3pts extra credit Category: Write a ratio

25. Bonus
From 1995 through 1999, the sales for a national furniture store increased by about the same percent each year. The sales, s, in millions of dollars for year, t, can be modeled by s = 476(1.13)t, where t = 0 represents since Find the ratio of 1996 sales to 1999 sales.