Answer: Fraction of paint used for bird house = 
Step-by-step explanation:
Let quantity of the total paint be 1.
Given: Fraction of paint to book shelf = 
Fraction of Paint to leg = 
Fraction of Paint left = 
Let x= fraction of paint used for bird house.
Total paint = 

So, Fraction of paint used for bird house = 
4x=x
IS that what it is wanting? I don't quite know. If I am correct I am glad I could help but If I am incorrect then I very very very very sorry!
It is an expression, as an equation has an equal sign on it.
This has no equality property, therefore it is an expression.
Answer:
See attachment
Step-by-step explanation: