1. Chapter 1 Review Assessment2 3 4 5 6 7 8 9 10 11 12 14 5 6 10 10 28
3 + xy,
3 + yx, or yx + 3 24 3
6 + a

2. 6) Simplify: • • 8
= 28

3. 9. Equivalent expression using the commutative property: xy + 3

4. 12. Write an equivalent expression:

6. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 74
24=2•2•2•2
5x3=5•x•x•x
04 = 0
400
(5x)2 if x=4
8x5 48
3y2 if y=4 44 27
512
(4t)3 if t=2
(3•6)2 = 182 = 324
6+33 = 6+27 = 33
220 60

7. Use the associative property to write an equivalent expression:
31. (x + y) + 5

8. Use the associative property to write an equivalent expression:
31. (x + y) + 5
x + y + 5

9. 3 • (a • b) 3a • 3b ?? (3 • a)• b (a • 3) • b b • (3 • a)
32. Use the commutative and the associative properties to write three equivalent expressions:
3 • (a • b)
3a • 3b ??
(3 • a)• b
(a • 3) • b
b • (3 • a)

10. 24y Use the distributive property to write an equivalent expression:

11. Use the distributive property to write an equivalent expression:18

12. Factor:
34. 8a + 12b  4•2•a + 4•3•b
4 ( ) 2a + 3b

13. Factor:
a + 6y + 12
6 ( ) 3a +
y +2

14. Factor:
b + 36a
3 ( ) 1 +
4b +12a

15. 15a Collect like terms: 38. 7a + 3b + 8a + 4b
Variable (letter) and exponent must be exactly the same.
Add the coefficients.
a + 3b + 8a + 4b
15a

16. 15a + 7b Collect like terms: 38. 7a + 3b + 8a + 4b
Variable (letter) and exponent must be exactly the same.
Add the coefficients.
a + 3b + 8a + 4b
15a
+ 7b

17. 9m + 16m2 Collect like terms: 39. 6m + 9m2 + 3m + 7m2
Variable (letter) and exponent must be exactly the same.
Add the coefficients.
m + 9m2 + 3m + 7m2 9m
+ 16m2

18. X - 11 2n 6 + n w - 7 40 11 fewer than x 41 half of a number
42 Twice a number
43 Six more than a number 44 45
X - 11 2n
6 + n
w - 7

19. Solve for the given replacement set.X
n – 4 = {2, 3, 4}
5 • 2 – 4 = 11 ???
5 • 3 – 4 = 11 yes

20. Solve for the given replacement set.X
47. x2 – x = {0, 2, 4}
= 2 ???
= 2 yes

21. Solve for the given replacement set.
y = {5, 50, 500}
7.2 • 5 = 36

22. 49. Each pair of equations are equivalent
49. Each pair of equations are equivalent. What was done to the first equation to get the second one?
Both sides were multiplied by 2

23. 50. Each pair of equations are equivalent
50. Each pair of equations are equivalent. What was done to the first equation to get the second one?
4 was added to both sides +4 +4

24. 51. Find the distance (d) traveled by a train moving at the rate (r) of 50 mi/h for the time (t) of 3 h using the formula d = rt.
d = r t
d = 50 mi/h • 3 h
d = 150 mi

25. 52. Find the temperature in degrees Celsius (C) given a temperature of 77° Fahrenheit (F) using the formula 5
= 25 C