Which equations support the fact that rational numbers are closed under addition? select each correct answer. 13+13=23 9√+9√=29√ 2√+2√=22√ 6√+(−6√)=0

Answer

B is correct.

13+13=23 is not correct, but I think you mean 1/3+1/=2/3. That would be correct.

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: