Name _____________________________________________Date _____________________ Test Date ____________________
Chapter 7 Review 2
SCORE ______________
Write the letter for the correct answer in the blank at the right of each question.
1. Simplify(𝑥 3 )8 .
A 𝑥 24
B 𝑥 11
C 8𝑥 24
D 8𝑥 11
1.________________
2. Simplify (−2ℎ𝑘)4 (4ℎ3 𝑘 5 )2.
F 2ℎ24 𝑘 40
3. Simplify
A
G –64ℎ9 𝑘 11
36𝑏4 𝑐 2
.
9𝑏−1 𝑐 5
H – 256ℎ10 𝑘 14 J 256ℎ10 𝑘 14
2. ________________
Assume the denominator is not equal to zero.
27𝑏4
𝑐3
B
4𝑏4
𝑐3
C
27𝑏3
𝑐3
D
4𝑏5
𝑐3
3. ________________
2
4. Simplify
F
(3 𝑦 4 𝑛6 )
4
( 𝑦 2 𝑛−3 )
9
𝑦 16
. Assume the denominator is not equal to zero.
G
9
𝑛24
H 9𝑦16
J 9𝑛24
4. ________________
5. Which monomial represents the number of square units in the area of a square with a
side length of 4𝑥 3 units?
A 16𝑥 6
B 8𝑥 6
5. ________________
C 16𝑥 9
D 8𝑥 5
G 4.61 × 106
H 4.61 × 105
J 4.61 × 108
6. ________________
B -1.75 × 10−20
C -1.75 × 10−1
D -1.75 × 101
7. ________________
6. Express 46,100,000 in scientific notation.
F 4.61 × 107
−7 × 104
7. Evaluate 4 × 10−5 .
A -1.75 × 109
8. The total attendance for a professional baseball team this season was 3.24 × 106 and
two years ago was 2.43 × 106 . About how many times as large was this season’s
attendance as attendance two years ago?
F 0.8
G 0.9
H 1.1
J 1.3
9. A weight lifter can deadlift 275 pounds. She can increase the weight W(x) that she can
lift according to the function W(x) = 275(1.05)𝑥 , where x represents the number of
training cycles completed. How much will she deadlift after 5 training cycles?
A 334 lb
B 369 lb
C 344 lb
8. ________________
9. ________________
D 351 lb
10. A city’s population is about 763,000 and is increasing at an annual rate of 1.5%.
Predict the population of the city in 50 years.
F 1,335,250
G 826,830,628
H 358,374
J 1,606,300
10. ________________
11. A printing press valued at $120,000 depreciates 12% per year. What will be the
approximate value of the printing press in 7 years?
A $19,200
B $265,282
C $49,041
D $55,728
11. ________________
Name _____________________________________________Date _____________________ Test Date ____________________
12. Determine the amount of an investment if $700 is invested at an interest rate of 8%
compounded monthly for 9 years.
13. Simplify
(5 x 2 w 4 )( 4 x 3 w)
4
14. Simplify.
Write answer in scientific notation.
(3x10 )( 4.1x10 7 )
15. Simplify.
16.Simplify.
(2hk ) 3 (4h 3 k 2 ) 2
36b 4 c 2
9b 3 c 5
17. Write 4,130,000 in scientific notation.
18. Express
19. Simplify.
20. Simplify.
21. Write
5.43 x10 4 in standard notation.
2.88 x108
2.4 x10 3
16r 3 s 0 t 5
4r 2 q  2 t
1.27 x10 5 in standard notation.