1.
Which statement illustrates the associative property of multiplication?
A.
(2
x
)
y
=
y
(2
x
)
B.
(2
x
)
y
= 2
xy
C.
(2
x
)
y
= 2(
xy
)
D.
(2
x
)
y
= (
x
· 2)
y
Hint
2.
Simplify 12
f
+ 6(3 + 4
f
).
A.
54
f
B.
16
f
+ 18
C.
36
f
+ 18
D.
34
f
Hint
3.
Evaluate 2 × 17 × 5.
A.
170
B.
180
C.
160
D.
190
Hint
4.
Write a simplified expression to represent 5 times the sum of
x
and 3 increased by 10.
A.
18
x
B.
5
x
+ 13
C.
5
x
+ 25
D.
35
x
Hint
5.
Simplify 2
x
+ 5
x
+ 4(
x
+ 3).
A.
14
x
B.
23
x
C.
11
x
+ 3
D.
11
x
+ 12
Hint