Respuesta :

For #7 - part a: greatest common factor (GCF) is 5.

Part b: cross out everything BUT 10 & 20.

Answer:

:)

Step-by-step explanation:

7 Part A the GCF is 5

Part B cross out 15 and 25

8 Commutative  Property

Assosiative Property

and I think the 10.2 is Additive Identity Property, I am not sure, ask your teacher if they will help