which expression best describes these equations?

A. a(b + c) = ab + ac
B. This is what the 5 in the term 5xy is called.
C. (a + b) + c = a + (b + c)
D. This expression has 4 of them: 3a + b - 5 + 8d.

E. a + b = b + a

Question

which expression best describes these equations?

A.	a(b + c) = ab + ac
B.	This is what the 5 in the term 5xy is called.
C.	(a + b) + c = a + (b + c)
D.	This expression has 4 of them: 3a + b - 5 + 8d.

E.	a + b = b + a

anonymous · Answer

A.	a(b + c) = ab + ac ( distributive property ) -----------
B.	This is what the 5 in the term 5xy is called. (coefficient)-----
C.	(a + b) + c = a + (b + c) ( associative property ) -----
D.	This expression has 4 of them: 3a + b - 5 + 8d. (terms)------

E.	a + b = b + a (commutative prperty)