Answer:
Age of Mel is 25 years.
Step-by-step explanation:
It is given that,the sum of Ali and Mel's age is 39. If Mel is 3 years younger than twice Ali's age.
Let 'x' be the Ali's age  and 'y' be the Mel's age
<u>To find the value of x and y</u>
sum of Ali and Mel's age is 39
⇒ x + y = 39    ------(1)
   Mel is 3 years younger than twice Ali's age
⇒ y = 2x - 3   -------(2)
⇒  2x - y = 3  -----(3)
(1) + (3) ⇒  
  x + y = 39
 2x - y = 3
----------------
 3x   = 42
x = 42/3 = 14
y = 2x - 3 = 14*2 - 3  = 25
Therefore the age of Ali = 14
Age of Mel = 25
 
        
             
        
        
        
Answer:
divide the figure into two parts. 
area of triangle = 1/2×base×height 
area of triangle = 1/2×3×3
area pf triangle = 4.5 units²
area of square = side²
area of square = 3²
area of square = 9unit² 
 
        
                    
             
        
        
        
Answer: I can't see the image
 
        
             
        
        
        
Answer:
C (37, 77)
Step-by-step explanation:
<h3>Option A:</h3>

Option A is not a solution.
<h3>Option B:</h3>

Option B is not a solution.
<h3>Option C:</h3>

Option C is a solution.
Hope this helps.