1.
Simplify the expression 138
n
+ 272
n
.
A.
400
n
B.
310
n
C.
410
n
D.
500
n
Hint
2.
Simplify 7
a
+ 3
a
.
A.
4
a
B.
10
aa
C.
21
a
D.
10
a
Hint
3.
Simplify 14
q
+ 6 + 3
q
.
A.
17
q
+ 6
B.
23
q
C.
20
q
+ 3
D.
14
q
+ 9
Hint
4.
Which expression is
not
equivalent to 9
w
− 5(
w
+ 3
y
)?
A.
9
w
− 5
w
− 15
y
B.
9
w
− 5 •
w
− 5 • 3
y
C.
9
w
− 15
wy
D.
4
w
− 15
y
Hint
5.
Determine whether the expression has like terms. If so, choose what they are. 3
bc
− 4 + 6
bc
A.
3
bc
; 4
B.
3
bc
; 6
bc
C.
None
D.
4; 3
Hint