Hello guys not quite sure this
        
             
        
        
        
Answer:
[see below] 
Step-by-step explanation:
Finding the slope of the two points:

The slope is -6. 
Using an incomplete slope-intercept form equation to find the y-intercept:

The equation for the line passing the points is  .
. 
The equation in standard from would be  .
.
 
        
             
        
        
        
I be live it would be 35 because you would just multiply 7x5 which I'd how I got my answer 35
        
                    
             
        
        
        
It is best to solve for the areas of two circles and solve for their difference. The area is calculated by the equation, A = πd² / 4
                                   A1 = π x(9 ft)² / 4 = 81π/4 ft²
                                   A2 = π x(20 ft)² / 4 = 100π ft² 
The difference in their values is approximately 250.52 ft².