Answer:
4 blue dogs
Step-by-step explanation:
Since there are 6 black dogs and 5 white dogs, there is 11 black and white dogs. There is 15 dogs in total, so you subtract 11 from 15, and that is 4. So, 4 dogs are blue.
For this case we must simplify the following expression:

We have that by definition of properties of powers that is fulfilled:

Then, rewriting the expression:

Answer:

The answer to the first question is b
I don’t know the answer to the second one sorry
ANSWER: no
EXPLAIN: because a proportional relationship graph would have a straight line running through the origin