Answer: Its little bit hard to become tutor. You need to give more answers.
Step-by-step explanation:
 
        
                    
             
        
        
        
To begin with, equivalent fractions represent the same part of a whole number. So I need to find a fraction, with a denominator of 20, that is the same value as 1/2: 
1/2 = ?/20
1*10/2*10 = 10/20
Since the denominator needed to be 20, I multiplied the numerator and the denominator (1/2) by 10 to get 10/20. So, 1/2 and 10/20 are equivalent.
        
             
        
        
        
Answer:
Step-by-step explanation:
m∠AOB+m∠BOC=180°
m∠AOB=8x+51°
m∠BOC=6x-25°
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m∠AOB:-



Therefore, m∠AOB=139°
 
        
             
        
        
        
Answer:
 
Step-by-step explanation:
GIVEN : In ΔPQR
               S is the mid point of QP
               U is the mid point of PR
               T is the mid point of  QR
Solution :
i) is true i.e 
Refer the attached file 
By mid segment theorem i.e. In a triangle, the line joining the midpoints of any two sides will be parallel to the third side and that same line joining the midpoints is also half of length of third side .
UT is the line joining the two mid points . So, by theorem given above UT is parallel to PQ and  1/2QP=UT.
So, (i) statement is true i.e. 
 
        
                    
             
        
        
        
Answer:
D
Step-by-step explanation:
when x=0, y=2