What property are
3c+5(2+c)=3c+5(2)+5c
=3c+5c+5(2)
=(3c+5c)+5(2)
=(3+5)c+5(2)
=8c+10

We applied distributive, associative and commutative properties to solve the calculus.

Step-by-step explanation:

3c+5(2+c)=3c+5(2)+5c           (distributive property)

=3c+5c+5(2)                            (commutative property)  

=(3c+5c)+5(2)                          (associative property)

=(3+5)c+5(2)                           (distributive property) by the shape of common factor extraction).

=8c+10          3+5 is a simple add and 5.2 is a simple multiplication)