1.
Express 45,280,000 in scientific notation.
A.
4.528 × 10
-7
B.
45.28 × 10
6
C.
4.528 × 10
6
D.
4.528 × 10
7
Hint
2.
What is the degree of 42
x
5
y
2
z
?
A.
7
B.
2
C.
8
D.
5
Hint
3.
Simplify
A.
k
3
B.
k
-3
C.
D.
k
17
Hint
4.
Simplify (-3
a
5
b
3
)
4
.
A.
-12
a
20
b
12
B.
-12
a
9
b
7
C.
-81
a
9
b
12
D.
81
a
20
b
12
Hint
5.
Express the result in scientific notation. (3 × 10
-3
)(2 × 10
9
)
A.
3 × 10
12
B.
3 × 10
6
C.
6 × 10
6
D.
6 × 10
12
Hint