1.
Simplify (7
a
4
b
) (8
a
7
b
6
).
A.
15
a
28
b
6
B.
56
a
28
b
6
C.
56
a
11
b
7
D.
15
a
11
b
7
Hint
2.
Find
.
A.
-14
B.
-15
C.
15
D.
14
Hint
3.
Solve the equation
x
2
= 0.81.
A.
none of these is correct
B.
x
= -0.9 only
C.
x
= 0.9 only
D.
x
= 0.9 or
x
= -0.9
Hint
4.
Use an exponent to write 177,147 as a power of 3.
A.
3
9
B.
3
17
C.
3
19
D.
3
11
Hint
5.
The population of fish in Mark's lake is 500 this year. If the population increases by 6.9% a year, what number can Mark multiply this year's population by to estimate the fish population in the lake next year?
A.
1.069
B.
1.69
C.
0.0931
D.
6.9
Hint
6.
Find the table that does not represent an exponential equation.
A.
B.
C.
D.
Hint