1.
Simplify 3(2
a
+
b
) + 6(
a
- 2
b
).
A.
12
a
- 9
b
B.
12
a
+
b
C.
12
a
+ 15
b
D.
12
a
+ 9
b
Hint
2.
Simplify (18
q
3
r
)(2
q
r
4
).
A.
36
q
3
r
5
B.
36
q
3
r
4
C.
36
q
r
D.
36
q
4
r
5
Hint
3.
Simplify (-3
a
5
b
3
)
4
.
A.
-12
a
9
b
7
B.
-12
a
20
b
12
C.
81
a
20
b
12
D.
-81
a
9
b
12
Hint
4.
Name the property illustrated by the equation 5 ·? (-2 – 7) = 5 ·? -2 – 5 ·? 7.
A.
Inverse Property
B.
Associative Property
C.
Commutative Property
D.
Distributive Property
Hint
5.
If
a
= –5 and
b
= 7, what is
A.
–114
B.
145
C.
–174
D.
–76
Hint