Answer:
4.
a) 
b) 
5. Yes
Step-by-step explanation:
The distributive property is:

It can be extended to a lot of terms as well.
We will use this to multiply both of the probelms shown.
4 a)

The answer is 
4 b)

The answer is 
5. Yes
Answer:
7v +1
Step-by-step explanation:
6v+v+1
Combine like terms
7v +1
Answer:
B. (3, -2.5)
Step-by-step explanation:
Got it Right on EDGE
Use 12 to divide evenly among 3 sets. it will be 4 each set. 12 is negative, and you are dividing by a positive, so the answer will be negative (-4).