1.
Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
A.
5
4
B.
4
5
C.
4
4
D.
5
5
Hint
2.
Write x
6
as a multiplication expression.
A.
6 · 6 · 6 · 6 · 6 · 6
B.
6
x
C.
D.
x
·
x
·
x
·
x
· x ·
x
Hint
3.
Evaluate the expression 4
n
+
m
2
if
m
= 6 and
n
= 8.
A.
88
B.
44
C.
40
D.
68
Hint
4.
Express 130,254 in expanded form.
A.
(1 × 10
6
) + (3 × 10
5
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
B.
(1 × 10
5
) + (30 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
C.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
D.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
Hint
5.
Find
y
for
y
=
x
2
- 15 if
x
= 6.
A.
-3
B.
49
C.
21
D.
51
Hint