1.
Which statement illustrates the associative property of multiplication?
A.
(2
x
)
y
= (
x
· 2)
y
B.
(2
x
)
y
=
y
(2
x
)
C.
(2
x
)
y
= 2(
xy
)
D.
(2
x
)
y
= 2
xy
Hint
2.
Simplify 12
f
+ 6(3 + 4
f
).
A.
54
f
B.
34
f
C.
36
f
+ 18
D.
16
f
+ 18
Hint
3.
Evaluate 2 × 17 × 5.
A.
180
B.
160
C.
170
D.
190
Hint
4.
Simplify 7(
b
+ 3) + 14.
A.
7
b
+ 17
B.
42
b
C.
7
b
+ 35
D.
24
b
Hint
5.
Evaluate 0.75 + 2.2 + 0.25 + 0.8.
A.
5
B.
4
C.
3
D.
6
Hint