It’s b
I think…………………………………………..
Answer:
4
Step-by-step explanation:
have a nice day
Start with the given equation:

Substitute known values:

Evaluate:

Similarly:


<span>D. r + (-r) = 0
</span>
The additive inverse<span> of a number a is the number that, when added to a, yields zero. This number is also known as the opposite.</span>