1.
Evaluate
if
a
= 9,
b
= 6 and
c
= 3.
A.
9
B.
5
C.
11
D.
15
Hint
2.
Simplify 2
a
4
+ 4
a
2
+
a
4
.
A.
3
a
4
+ 4
a
2
B.
7
a
10
C.
2
a
4
+ 4
a
2
+
a
4
D.
3
a
8
+ 4
a
2
Hint
3.
Evaluate
a
b
+ 8 if
a
= 4 and
b
= 7
A.
36
B.
55
C.
28
D.
60
Hint
4.
Simplify 6
e
- 9 + 10
e
.
A.
7
e
B.
16
e
- 9
C.
-4
e
- 9
D.
16
e
+ 9
Hint
5.
At a nature store, you buy three pieces of hematite rock for
d
dollars, two pieces of tiger’s eye for $2.50 each, and a rose quartz for $3. Write an expression in simplest form that represents the total amount.
A.
3
d
+ 5.5
B.
3
d
+ 11
C.
3
d
+ 8
D.
d
+ 8
Hint