1.
Simplify (4
x
3
) (3
x
5
).
A.
7
x
15
B.
12
x
8
C.
12
x
15
D.
7
x
8
Hint
2.
Simplify (4
y
4
)
3
.
A.
64
y
12
B.
12
y
3
C.
64
y
64
D.
12
y
12
Hint
3.
Simplify (4
x
2
y
) (2
x
y
2
z
3
)
3
.
A.
32
x
6
y
6
z
9
B.
8
x
5
y
7
z
9
C.
32
x
5
y
7
z
9
D.
24
x
5
y
7
z
9
Hint
4.
Find the volume of the rectangular solid shown below.
A.
24
a
2
b
10
B.
24
a
2
b
7
C.
9
a
4
b
8
D.
24
a
4
b
8
Hint
5.
Which expression is equivalent to ((3
2
)
4
)
3
?
A.
9
9
B.
27
12
C.
81
6
D.
9
6
Hint