1.
Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
A.
4
4
B.
5
5
C.
5
4
D.
4
5
Hint
2.
Evaluate the expression 4
n
+
m
2
if
m
= 6 and
n
= 8.
A.
68
B.
44
C.
40
D.
88
Hint
3.
Express 130,254 in expanded form.
A.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
B.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
C.
(1 × 10
5
) + (30 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
D.
(1 × 10
6
) + (3 × 10
5
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
Hint
4.
Find
y
for
y
=
x
2
- 15 if
x
= 6.
A.
21
B.
-3
C.
51
D.
49
Hint
5.
Evaluate
x
5
- 13 if
x
= -2.
A.
19
B.
-45
C.
3
D.
-23
Hint