1.
Simplify –11(
t
+ 1).
A.
11
t
+ 11
B.
11
t
+ 1
C.
-11
t
+ 1
D.
-11
t
– 11
Hint
2.
Simplify 14(
b
– 10).
A.
14
b
– 140
B.
4
b
C.
14
b
– 10
D.
b
– 140
Hint
3.
Simplify –20(
z
– 5).
A.
-20
z
+ 100
B.
20
z
+ 100
C.
-20
z
– 5
D.
20
z
– 5
Hint
4.
Write 10 · 10 · 10 in exponential form.
A.
3
1
B.
1
3
C.
10
3
D.
3
10
Hint
5.
Identify the like terms in the expression 2
n
+ 8 - 5
n
+ 2
m
.
A.
2
n
, -5
n
B.
no like terms
C.
8, -5
n
D.
2
n
, 2
m
Hint
6.
Identify the like terms in the expression 7
a
+
b
+ 7 - 15
b
.
A.
no like terms
B.
b
,
c
C.
b
, -15
b
D.
7
a
, 7
Hint
7.
Rewrite (4
s
+ 3
t
) + (11
s
+ 2
t
) using parentheses so that the like terms are grouped together.
A.
(4
s
+ 3
t
+ 11
s
+ 2
t
)
B.
(4
s
+ 2
t
) + (3
t
+ 11
s
)
C.
There are no like terms.
D.
(4
s
+ 11
s
) + (3
t
+ 2
t
)
Hint
8.
Rewrite (5
y
-
z
) + (6
y
+ 12
z
) using parentheses so that the like terms are grouped together.
A.
(5
y
+ 12
z
) + (-
z
+ 6
y
)
B.
(5
y
+ 6
y
) + (-
z
+ 12
z
)
C.
There are no like terms.
D.
(5
y
-
z
) + (6
y
+ 12
z
)
Hint
9.
Rewrite 4 - 7
a
as an addition expression by using the additive inverse.
A.
4 + (-7
a
)
B.
(-7
a
) + 4
C.
7
a
- 4
D.
4 + 7
a
Hint
10.
Rewrite 9
q
- 5
r
as an addition expression by using the additive inverse.
A.
(-5
r
) + 9
q
B.
9
q
+ (-5
r
)
C.
9
q
+ 5
r
D.
5
r
- 9
q
Hint