1.
Simplify –11(
t
+ 1).
A.
11
t
+ 11
B.
-11
t
+ 1
C.
-11
t
– 11
D.
11
t
+ 1
Hint
2.
Simplify –20(
z
– 5).
A.
20
z
– 5
B.
-20
z
– 5
C.
-20
z
+ 100
D.
20
z
+ 100
Hint
3.
Write 7 · 7 · 7 · 7 · 7 in exponential form.
A.
7
7
B.
7
5
C.
5
5
D.
5
7
Hint
4.
Write 10 · 10 · 10 in exponential form.
A.
3
10
B.
1
3
C.
3
1
D.
10
3
Hint
5.
Identify the like terms in the expression 2
n
+ 8 - 5
n
+ 2
m
.
A.
2
n
, 2
m
B.
8, -5
n
C.
2
n
, -5
n
D.
no like terms
Hint
6.
Identify the like terms in the expression 13 +
x
+ 4 +
y
.
A.
x
,
y
B.
13, 4
C.
no like terms
D.
x
, 4
Hint
7.
Rewrite (4
s
+ 3
t
) + (11
s
+ 2
t
) using parentheses so that the like terms are grouped together.
A.
(4
s
+ 2
t
) + (3
t
+ 11
s
)
B.
(4
s
+ 3
t
+ 11
s
+ 2
t
)
C.
(4
s
+ 11
s
) + (3
t
+ 2
t
)
D.
There are no like terms.
Hint
8.
Rewrite 9
q
- 5
r
as an addition expression by using the additive inverse.
A.
9
q
+ (-5
r
)
B.
(-5
r
) + 9
q
C.
5
r
- 9
q
D.
9
q
+ 5
r
Hint
9.
Rewrite 2
b
- 8 as an addition expression by using the additive inverse.
A.
2
b
+ (-8)
B.
2
b
+ 8
C.
(-8) + 2
b
D.
8 - 2
b
Hint
10.
Write 2 · 2 · 9 · 2 · 9 using exponents.
A.
2
3
· 9
3
B.
2
3
· 9
2
C.
3
2
· 2
9
D.
8 · 9
2
Hint