Step-by-step explanation:
Check the above photos.... 
 
        
             
        
        
        
Y=3.5x+4
a) 5=3.5x+4, 3.5x=1, x=1/3.5=2/7
b) y=3.5*10+4=35+4=39
        
             
        
        
        
Hello there
The correct answer in mm would be 60 mm
1 cm = 10 mm
So it would 5+9+20+26 = 60
In cm it would be 6 cm
10 mm = 1 cm
.5+.9+2+2.6 = 6
I hope this helped ^^
        
             
        
        
        
Answer: NEED PICTURE TO ANSWER, we dont know if it a square or if its a rectangle, sry
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 <em>81 </em>
Step-by-step explanation:
25, 36, 49, 64, ... 
36 - 25 = 11 
49 - 36 = 13 = 11 + 2 
64 - 49 = 15 = 13 + 2 
 64 + 15 + 2 = <em>81</em>