Answer: A
Step-by-step explanation:
See attached picture
If i'm not wrong its distributing property of addition. <span />
Answer:

Step-by-step explanation:

First, we expand the equation using the distributive rule:

Hence, 
Simplify: 
Add like terms:

Subtract 13 from both sides: 
Divide both sides by -8:

Answer:
0.4
0.3
0.04
0.2
0.06
Step-by-step explanation:
Hope this helps :)