1.
The symbol < means _____.
A.
less than or equal to
B.
greater than
C.
more than
D.
less than
Hint
2.
Write an inequality to describe a number that is at least 0.
A.
B.
C.
n
< 0
D.
n
> 0
Hint
3.
Solve
b
+ 9 < 3.
A.
b
> -6
B.
b
> 12
C.
b
< 12
D.
b
< -6
Hint
4.
Solve
.
A.
B.
C.
D.
Hint
5.
Solve
.
A.
c
< -45
B.
C.
c
> -45
D.
Hint
6.
Solve 15 > –3(
x
+ 10).
A.
x
> 5
B.
x
> -15
C.
x
< 5
D.
x
< -15
Hint
7.
Charlie wants his average test grade in language arts to be more than 85. His first three of four 100-point test scores were 75, 96, and 82. What score must he receive on the fourth test to have a mean score of more than 85 for all tests?
A.
s
> 85
B.
s
> 87
C.
s
> 90
D.
s
> 89
Hint
8.
Write two inequalities to describe the solution of
.
A.
and
B.
and
C.
or
D.
or
Hint
9.
Which graph represents the inequality
?
A.
B.
C.
D.
Hint
10.
Solve the equation -8
b
4.
A.
b
-2
B.
b
C.
b
-2
D.
b
Hint
11.
Which graph represents
n
2 or
n
0?
A.
B.
C.
D.
Hint
12.
Solve -2
x
+ 5
7 or 3
x
– 1
11.
A.
no solution
B.
x
-1
C.
x
4 or
x
-1
D.
x
4
Hint
13.
Laurie is worried about her hearing. She finds out that she should listen to music at between 30 and 90 decibels (dB) in order to prevent hearing damage and still be able to hear the music well enough. Which inequality represents this situation?
A.
|
d
– 90|
30
B.
|
d
+ 90|
30
C.
|
d
+ 60|
30
D.
|
d
– 60|
30
Hint
14.
Which inequality represents the graph?
A.
2
y
+ 2
x
< 1
B.
y
+
x
> 2
C.
y
+
x
< 2
D.
2
y
+ 2
x
> 1
Hint