Answer:
(0, -3) is the y intercept
the slope is equal to 7 
Step-by-step explanation:
 
        
             
        
        
        
We are given the diameter of the circle, I assume. In this case, the formula of the area of the circle is expressed as A = pi d^2/4. where pi is a constant. The only option taht makes sense here is C. 6.25 in2. This should have the constant pi on it. 
        
                    
             
        
        
        
The third answer is correct. Hope this helped!
        
             
        
        
        
First you have to solve for x and y and when you have you points then plot them
        
             
        
        
        
Answer:
6.7
Step-by-step explanation:
10% of 30000 
10/100 x 30000
0.10 x 30000
=3000
In order to find how long you have to divide 20k with 3k
20000/3000 = 6.66666667
Round it up and you get 6.7