1.
Simplify (4
x
3
) (3
x
5
).
A.
7
x
15
B.
12
x
15
C.
12
x
8
D.
7
x
8
Hint
2.
Simplify (3
a
4
b
5
c
)
4
.
A.
7
a
16
b
20
c
4
B.
81
a
16
b
20
c
4
C.
12
a
8
b
9
c
5
D.
3
a
16
b
20
c
4
Hint
3.
Find the volume of the rectangular solid shown below.
A.
9
a
4
b
8
B.
24
a
2
b
10
C.
24
a
2
b
7
D.
24
a
4
b
8
Hint
4.
Suppose that the base of a triangle is 3
x
y
and its height is also 3
x
y
. What is its area, expressed as a monomial?
A.
B.
x
4
C.
D.
6
x
2
y
2
Hint
5.
Which expression is equivalent to ((3
2
)
4
)
3
?
A.
81
6
B.
9
6
C.
9
9
D.
27
12
Hint