Answer:
where is the graph
Step-by-step explanation:
 
        
             
        
        
        
The perimeter = 20 and AC = 8
Now as it is not mentioned which sides are equal of the isosceles triangle ABC,
We have two possible situations.
1) 
If AC is the base
In that case AB = BC
Now AC = 8, AB = x , BC = x
So x + x + 8 = 20
2x + 8 = 20
2x = 12
x = 6
AB = BC = 6
2)
IF AC is not the base,
Then 
AC = BC or AC = AB
So BC = 8 or AB = 8
If AB = AC = 8
Then 
BC + 8 + 8 = 20
BC = 4
So there are two possible lengths of BC 
Either it is BC = 8 or BC = 6 or BC = 4
The figure is attached for your reference.
 
        
                    
             
        
        
        
I belive the answer would be B if not im sorry
        
             
        
        
        
Answer:
5-1.6n
Step-by-step explanation:
5+3.2n-4.8n=5-1.6n
 
        
             
        
        
        
Answer:
b
Step-by-step explanation: