1.
What is another way to write (6 + 7)
x
?
A.
6(
x
) × 7(
x
)
B.
6(
x
) + 7(
x
)
C.
6 + 7(
x
)
D.
6(
x
) + 7
Hint
2.
Use the distributive property to rewrite 3(5 +
y
) without parentheses.
A.
8 + 3
y
B.
8 +
y
C.
15 + 3
y
D.
15 +
y
Hint
3.
Factor the polynomial 3
x
+ 3.
A.
3(
x
+ 1)
B.
3(
x
+ 3)
C.
3(
x
- 3)
D.
3(
x
- 1)
Hint
4.
Write two expressions for the total number of blocks.
A.
5(
n
– 5), 5
n
– 25
B.
5(
n
+ 1), 5
n
+ 5
C.
5(
n
+ 5), 5
n
+ 25
D.
5(
n
– 1), 5
n
– 5
Hint
5.
Use the clues on the dot diagram to find the unknown values.
A.
a
= 3,
b
= 15
B.
a
= 1,
b
= 11
C.
a
= 5,
b
= 17
D.
a
= 10,
b
= 22
Hint