Question

PLEASE HELP ME SOLVE BOTH PROBLEMS I WILL GIVE BRAINLEST IF CORRECT

Answer 1

Answer:

I think 11 is 9.20 and I think 12 is -1.13.

Step-by-step explanation:

Could I have brainliest please?

Answer 2

What you add to a number to get zero.
The negative of a number.

Example:
The additive inverse of −5 is +5, because −5 + 5 = 0
The additive inverse of +5 is −5, because +5 − 5 = 0