Answer:
the answer is B.
Step-by-step explanation:
They are the opposites of each other
(-13.2)+8.1=-5.1
13.2+(-8.1)=5.1
Well i did this in my notes and i found this
Answer:
b. Pure Imaginary Numbers.
Step-by-step explanation:

-3 is an integer, a complex number, and a rational number.
Answer: b. Pure Imaginary Numbers.