1.
Simplify (4
x
3
) (3
x
5
).
A.
12
x
8
B.
7
x
15
C.
7
x
8
D.
12
x
15
Hint
2.
Simplify (4
y
4
)
3
.
A.
12
y
12
B.
64
y
12
C.
64
y
64
D.
12
y
3
Hint
3.
Simplify (3
a
4
b
5
c
)
4
.
A.
12
a
8
b
9
c
5
B.
81
a
16
b
20
c
4
C.
3
a
16
b
20
c
4
D.
7
a
16
b
20
c
4
Hint
4.
Simplify ((2
2
)
3
)
4
.
A.
2
9
= 512
B.
2
12
= 4096
C.
2
24
=16,777,216
D.
2
20
= 1,048,576
Hint
5.
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.
6
x
2
y
2
D.
Hint