Answer:
ok so square 13 cm, and square 4 cm. then you will add those together then take that number and find the square root  plz mark brainliest 
 
        
             
        
        
        
If the weight of the little brother is x, then the weight of  Charles is x + 9
The equation that can be used to determine what each one weighs is:
x + (x + 9) = 99.
Let us now solve it. 
x + x +9 = 99
2x + 9 = 99
2x = 99 - 9
2x = 90
x = 90/2 
x = 45 
Little brother's  weight is 45 kg.
Charles'   weight  will be 45 + 9 =  54 kg 
Adding these two weights will give 99kg
 
 
        
                    
             
        
        
        
Answer:
do 24 points i know it very well
 
        
             
        
        
        
Answer:
x=-6
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The answer in lowest terms is 15/17
Step-by-step explanation:
Hope that helps!