Which property allows you to write the expression [(3 + 7i) + (8 − 6i)] + (1+ 9i) as (3 + 7i) + [(8 − 6i) + (1 + 9i)]?

Which property allows you to write the expression

(3 + 7i) + (8 − 6i) as (8 − 6i) + (3 + 7i)?  

COMMUTATIVE

Which property allows you to write the expression

[(3 + 7i) + (8 − 6i)] + (1+ 9i) as (3 + 7i) + [(8 − 6i) + (1 + 9i)]?  

ASSOCIATIVE

Step-by-step explanation:

ED2020

a 10 percent increase