1.
Simplify
x
3
y
0
z
-2
.
A.
-
x
3
yz
2
B.
C.
0
D.
Hint
2.
Simplify
. Assume the denominator is not equal to zero.
A.
B.
C.
-
b
2
D.
Hint
3.
Simplify
Assume the denominator is not equal to zero.
A.
5
xy
8
B.
5
xy
2
C.
D.
1
Hint
4.
The area of the rectangle shown below is 4
x
3
y
2
, and its base
b
is 2
x
5
y
. Find the height,
h
.
A.
B.
8
x
8
y
3
C.
D.
2
x
2
y
Hint
5.
Simplify
.
A.
x
2
y
B.
x
3
y
2
C.
x
2
y
2
D.
x
3
y
Hint