1.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
15
a
28
b
6
B.
56
a
28
b
6
C.
15
a
11
b
7
D.
56
a
11
b
7
Hint
2.
Simplify (4
y
4
)
3
.
A.
12
y
12
B.
64
y
12
C.
12
y
3
D.
64
y
64
Hint
3.
Simplify (3
a
4
b
2
)
2
(2
a
3
bc
2
)
3
.
A.
6
a
17
b
7
c
6
B.
36
a
17
b
7
c
6
C.
17
a
12
b
8
c
5
D.
72
a
17
b
7
c
6
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.
6
x
2
y
2
B.
C.
x
4
D.
Hint
5.
Which expression is equivalent to ((3
2
)
4
)
3
?
A.
27
12
B.
81
6
C.
9
9
D.
9
6
Hint