Question

21⁄5 is additive inverse of
1 point
-4.2
- 5⁄21
-4.5
5⁄21

Answer 1

The answer is -4.2
EXPLANATION-

the additive inverse of a number a is the number that, when added to a, gives zero. This number is also known as the opposite, sign change, and negation.

So, 21/5 can also be written as 4.2.
If you change the sign we will get -4.2

Hope it helps!
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Answer 2

The answer is -4.2
The additive answers