Which property is shown by 4 + (5 + 6) = (4 + 5) + 6? O A. Commutative Property of Addition
B. Distributive Property
C. Additive Identity
D. Associative Property of Addition

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.