Answer:
When you have two negative signs, one turns over, and they add together to make a positive. If you have a positive and a negative, there is one dash left over, and the answer is negative.
<em>I hope this was the answer you were looking for - Lily~Senpai :P</em>
Answer: one term so it is a monomial
Step-by-step explanation:
Yes, because it could maintain the flow of traffic efficiency. It would lessen the chances of car accidents because it would leave less room for user error