Answer:
1/2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: Daria earns a fixed amount of $55 for each television.
Step-by-step explanation:
Let a represent the fixed amount that Daria earns for each television.
Daria earns a fixed amount for each television and an additional $25 if the buyer gets an extended warranty. This means that if she sells b televisions with extended warranties, the total amount that she would earn is
ab + 25b
If Daria sells 14 televisions with extended warranties,she earns $1,120. Therefore,
14a + 14 × 25 = 1120
14a + 350 = 1120
14a = 1120 - 350
14a = 770
a = 770/14
a = 55
        
             
        
        
        
Answer:
Linear functions
Step-by-step explanation:
 
        
             
        
        
        
Answer: Y2-Y1 over X2-X1 which gives you 7/-11
Step-by-step explanation:
 
        
             
        
        
        
Answer:
As Given, x+y=w+z
To Prove: AOB is a line or x+y=180 
∘
 (linear pair.)
According to the question,
x+y+w+z=360 
∘
 ∣ Angles around a point.
(x+y)+(w+z)=360 
∘
 
(x+y)+(x+y)=360 
∘
 ∣ Given x+y=w+z
2(x+y)=360 
∘
 
(x+y)=180 
∘
 
Hence, x+y makes a linear pair. 
Therefore, AOB is a straight line