Answer:
Step-by-step explanation:
A2+B2=C2
2(2)+2(2)=C2
4+4=C2 
8=C2 
C= About 2.8
 
        
             
        
        
        
The answer should be I think b
        
                    
             
        
        
        
Answer:
68-x
Step-by-step explanation:
71-x-3=71-3-x=68-x
 
        
             
        
        
        
Answer:
X-3 yrs old
Step-by-step explanation:
Take Laura=X 
Since Laura is X years old and Jeri is 3 years younger then Jeri's age = Laura's age- 3years so,
Jeri's age= X-3
 
        
             
        
        
        
To find the answer, we can first find the age of Rolando in four year:
17+4
=21
We can then proceed to find the current age of Marisa,which is 3/2 of Rolando’s age calculated above:
Let Marisa’s age be y.
3/2 y =21
y = 21 × 2/3
y = 42/3
y = 14
Therefore Marisa is currently 14 years old.
In three years, Marisa would be:
14+3
=17 
Therefore, she will be 17 years old.
Hope it helps!