1.
Solve 15 +
a
= 10.
A.
a
= -25
B.
a
= 150
C.
a
= 25
D.
a
= -5
Hint
2.
Solve the equation 3
b
- 5 = 18.
A.
b
= 20
B.
b
=
C.
b
=
D.
b
= 26
Hint
3.
Solve
A.
B.
C.
D.
Hint
4.
Solve –14
n
= -112.
A.
n
= -1568
B.
n
= -8
C.
n
= 8
D.
n
= 1568
Hint
5.
Solve 9
x
– 11 = -56.
A.
x
= -5
B.
x
= -405
C.
x
= 405
D.
x
= 5
Hint
6.
Solve
A.
x
= -6
B.
x
= 6
C.
All Real Numbers
D.
No Solution
Hint
7.
Solve
A.
All Real Numbers
B.
y
= -21
C.
No Solution
D.
y
= 21
Hint
8.
Solve 2
x
+ 8
y
= 48 for
y
.
A.
B.
y
= -2
x
+ 6
C.
y
= -2
x
+ 48
D.
Hint
9.
Solve 4
w
–
x
=
wy
+ 10 for
w
.
A.
w
= 14 +
x
–
y
B.
C.
D.
Hint
10.
Solve -15 =
k
- 12.
A.
k
= -27
B.
k
= 27
C.
k
=
D.
k
= -3
Hint
11.
What best describes the equation 2(4 + 6) = 20?
A.
true
B.
false
C.
none of these
D.
open
Hint
12.
Which is a solution to the equation 3
y
+ 4 = 10?
A.
3
B.
2
C.
4
D.
1
Hint
13.
The formula to find the area of a trapezoid is
where
are bases and
h
is the height. If the area of a trapezoid is 42,
and
h
=3, what is the length of
A.
32
B.
4
C.
28
D.
24
Hint
14.
The formula to find the area of a trapezoid is
where
are bases and
h
is the height. What is the height of a trapezoid that has an area of
and bases of 8 and 12 inches? Round answer to the nearest tenth.
A.
5.4 in.
B.
6.4 in.
C.
12 in.
D.
52 in.
Hint
15.
Which inequality is shown in the graph?
A.
x
-2
B.
x
-2
C.
x
-2
D.
x
-2
Hint
16.
Which inequality is shown in the graph?
A.
p
B.
p
C.
p
D.
p
Hint
17.
Find the solution to the sentence, ''2 times the sum of a number and 4 is at least 6 times the number decreased by 8''.
A.
x
-12
B.
x
4
C.
x
-12
D.
Hint
18.
Solve 16(
t
- 1) + 10 > 17
t
+ 12.
A.
t
-14
B.
t
18
C.
t
14
D.
t
-18
Hint