Answer:
1) 
2) 
3) 
Step-by-step explanation:
Given : A certain economy's consumption function is given by the equation 
where, C(x) is the personal consumption expenditure in billions of dollars, and x is the disposable personal income in billions of dollars.
To find :
1) C(0)
Put x=0 in the given equation,


2) C(50)
Put x=50 in the given equation,



3) C(100)
Put x=100 in the given equation,


