1.
What is the greatest common factor of 45, 75, and 135?
A.
5
B.
25
C.
9
D.
15
Hint
2.
Find the greatest common factor of 64
ab
3
c
2
and 48
a
2
b
2
c
.
A.
16
ab
2
c
B.
8
a
2
b
2
c
2
C.
8
ab
3
c
D.
16
abc
Hint
3.
Find the GCF of 16
a
3
b
2
and 12
a
2
b
.
A.
4
ab
B.
4
a
2
b
C.
2
ab
D.
2
a
2
b
Hint
4.
Find the GCF of 17
r
4
s
4
and 23
r
s
4
.
A.
r
4
s
4
B.
rs
C.
17
r
s
4
D.
r
s
4
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.
24
x
3
by
x
+ 18
B.
3 by 8
x
3
+ 6
x
3
C.
2
x
4
by 12 + 9
x
D.
6
x
3
by 4
x
+ 3
Hint