1.
Simplify –11(
t
+ 1).
A.
11
t
+ 1
B.
11
t
+ 11
C.
-11
t
+ 1
D.
-11
t
– 11
Hint
2.
Write 7 · 7 · 7 · 7 · 7 in exponential form.
A.
5
5
B.
5
7
C.
7
5
D.
7
7
Hint
3.
Identify the like terms in the expression 2
n
+ 8 - 5
n
+ 2
m
.
A.
2
n
, -5
n
B.
8, -5
n
C.
2
n
, 2
m
D.
no like terms
Hint
4.
Identify the like terms in the expression 13 +
x
+ 4 +
y
.
A.
x
, 4
B.
no like terms
C.
13, 4
D.
x
,
y
Hint
5.
Identify the like terms in the expression 7
a
+
b
+ 7 - 15
b
.
A.
b
, -15
b
B.
7
a
, 7
C.
no like terms
D.
b
,
c
Hint
6.
Rewrite (5
y
-
z
) + (6
y
+ 12
z
) using parentheses so that the like terms are grouped together.
A.
(5
y
+ 6
y
) + (-
z
+ 12
z
)
B.
(5
y
-
z
) + (6
y
+ 12
z
)
C.
There are no like terms.
D.
(5
y
+ 12
z
) + (-
z
+ 6
y
)
Hint
7.
Rewrite 4 - 7
a
as an addition expression by using the additive inverse.
A.
7
a
- 4
B.
(-7
a
) + 4
C.
4 + 7
a
D.
4 + (-7
a
)
Hint
8.
Rewrite 9
q
- 5
r
as an addition expression by using the additive inverse.
A.
9
q
+ (-5
r
)
B.
9
q
+ 5
r
C.
(-5
r
) + 9
q
D.
5
r
- 9
q
Hint
9.
Rewrite 2
b
- 8 as an addition expression by using the additive inverse.
A.
(-8) + 2
b
B.
2
b
+ 8
C.
2
b
+ (-8)
D.
8 - 2
b
Hint
10.
Write 2 · 2 · 9 · 2 · 9 using exponents.
A.
2
3
· 9
2
B.
8 · 9
2
C.
2
3
· 9
3
D.
3
2
· 2
9
Hint