Answer:
Option C is the answer.
Step-by-step explanation:
To find the equation of the straight line equation i.e, we must be given with the two points  and
 and 
Since from the graph the two points closest to the line are and
 and 
Equation of line with two points closest to the line :
                                                     
where m is the slope.
First we find the slope(m)= 
  

on simplify we get,   .
.
Now, to find  the equation of the line:  

Apply distributive property on right hand side, we get
 
 
Adding both sides by 36, we get 

 .
.
The equation for the linear  model in the scatter plot obtained by the two closest point  closest to the line is,
 closest to the line is,

 
        
                    
             
        
        
        
Price of boots is represented as x, price of tennis shoes is represented as y.
x-y=44.38
x+y=196.12
Isolate x. (Or y, if you wanted to)
x=y+44.38
x=196.12-y
Set them equal to each other.
y+44.38=196.12-y
Solve for y. Then plug it in to either of the two original equations to find x.
x=120.24
y=75.86
Note: This is assuming that the boots are more expensive than the tennis shoes. If the tennis shoes are more expensive than the boots, then the prices would be switched. I didn't find this clear in your question.
        
             
        
        
        
Answer:
50 + 25 + (8*5) - (7 + 4)
Step-by-step explanation:
50 + 25 + (8*5) - 7 + 4 = 50 + 25 + 40 -  7  + 4
                                       = 115 - 7 + 4
                                       = 108 + 4
                                      = 112
 
        
             
        
        
        
Simplify the expression 5(x-3)(x^2+4x+1)
it would be I think answer number 3