1.
Express 45,280,000 in scientific notation.
A.
4.528 × 10
-7
B.
45.28 × 10
6
C.
4.528 × 10
7
D.
4.528 × 10
6
Hint
2.
Express 0.091 in scientific notation.
A.
9.1 × 10
-2
B.
9.1 × 10
-1
C.
9.1 × 10
1
D.
9.1 × 10
2
Hint
3.
Simplify (-3
a
5
b
3
)
4
.
A.
81
a
20
b
12
B.
-81
a
9
b
12
C.
-12
a
20
b
12
D.
-12
a
9
b
7
Hint
4.
Simplify
A.
5
t
3
u
3
v
4
B.
C.
D.
Hint
5.
Simplify
A.
B.
C.
D.
27
x
3
n
y
6
Hint