Question

Verify the closure, commutativity, and
associativity under addition for 1.2, 3.1, and -0.5.​

Answer 1

Step-by-step explanation:

sorry my dear can you please elaborate the question because it is very confusing you have given only three numbers and you are telling that verify the closer commutative and associative property.

I think you have made a mistake in the question so check it properly