Answer:
answer is option c)4
x
Step-by-step explanation:
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Very confusing wording and your picture is blurry sorry 
        
             
        
        
        
(Answer: 120) angle EHF = 90 degrees+30 degrees=120 angle
        
                    
             
        
        
        
Answer: 10, 11, & 12
<u>Step-by-step explanation:</u>
Let x represent the age of the youngest child.  
Their ages are consecutive so,
Youngest: x
Middle: x + 1
Oldest: x + 2
The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.
x² = 8(x + 2) + 4
x² = 8x + 16 + 4
x² = 8x + 20
x² - 8x - 20 = 0
(x - 10)(x + 2) = 0
x - 10 = 0     or      x + 2 = 0
   x = 10       or          x = -2
Since age cannot be negative, x = -2 is not valid
So, the Youngest (x) is 10
the Middle (x + 1) is 11
and the Oldest (x + 2) is 12
 
        
             
        
        
        
Answer: 1 3/4 is your mixed fraction and 7/4 is the improper fraction.
Step-by-step explanation: