1.
Express 45,280,000 in scientific notation.
A.
4.528 × 10
-7
B.
4.528 × 10
7
C.
45.28 × 10
6
D.
4.528 × 10
6
Hint
2.
Express 0.091 in scientific notation.
A.
9.1 × 10
-1
B.
9.1 × 10
2
C.
9.1 × 10
1
D.
9.1 × 10
-2
Hint
3.
What is the degree of 42
x
5
y
2
z
?
A.
5
B.
7
C.
2
D.
8
Hint
4.
Simplify (18
q
3
r
)(2
q
r
4
).
A.
36
q
3
r
4
B.
36
q
r
C.
36
q
4
r
5
D.
36
q
3
r
5
Hint
5.
Simplify (-3
a
5
b
3
)
4
.
A.
-81
a
9
b
12
B.
-12
a
9
b
7
C.
81
a
20
b
12
D.
-12
a
20
b
12
Hint