1.
Find the greatest common factor of 168 and 288.
A.
48
B.
2
C.
24
D.
36
Hint
2.
What is the greatest common factor of 45, 75, and 135?
A.
15
B.
5
C.
25
D.
9
Hint
3.
Find the GCF of 16
a
3
b
2
and 12
a
2
b
.
A.
4
a
2
b
B.
2
a
2
b
C.
2
ab
D.
4
ab
Hint
4.
Find the GCF of 17
r
4
s
4
and 23
r
s
4
.
A.
r
s
4
B.
17
r
s
4
C.
r
4
s
4
D.
rs
Hint
5.
The area of a rectangle can be written by the expression 24
x
4
+ 18
x
3
. Find a set of possible dimensions for this rectangle.
A.
2
x
4
by 12 + 9
x
B.
6
x
3
by 4
x
+ 3
C.
3 by 8
x
3
+ 6
x
3
D.
24
x
3
by
x
+ 18
Hint